If Hillary's VP list comes down to these five, which one should she choose?

[TDAS04]

Well?

[Suburbia]

Kaine. He's a safe choice. He brings Virginia to the ticket as well.

[Kingpoleon]

Heinrich. Warren and Brown are great at alienating people, Castro's experience level is very low, and Kaine is the definition of an empty suit. Heinrich has the best personality for a running-mate of all five, besides the regional balance.

[NeverAgain]

Kaine, only one that doesn't sacrifice the Senate or has less experience than Sarah Palin.

[This account no longer in use.]

1. Heinrich
2. Warren
3. Kaine
4. Brown
5. Castro

Honestly, Heinrich and Warren are the only good choices here; Brown will inevitably be replaced by a Republican, while Kaine and Castro are as empty-suited as Marco Roboto.

[Amenhotep Bakari-Sellers]

Castro, Perez and Kaine its gonna come down to. If there was no SCOTUS vacant Dems can afford a Brown pick. But Leader McConnell is an obstructionist with Cruz

[Frodo]

Lizzy. 

[Xing]

Kaine or Warren.

[Lyin' Steve]

Heinrich. Warren and Brown are great at alienating people, Castro's experience level is very low, and Kaine is the definition of an empty suit. Heinrich has the best personality for a running-mate of all five, besides the regional balance.

Kaine has been getting a lot of hate on Atlas lately because people like to root against the top dog or don't just want to go with what everyone else is saying.

He's not an empty suit.  Kaine is a smart, accomplished, well-liked and reasonable guy.  He'd make a perfectly good VP or president.

Castro is an empty suit.  Unlike Kaine he's never done anything of note.

[Frodo]

I am not seeing how Hillary selecting Elizabeth Warren would alienate anyone who wasn't already planning on voting against her. 

[This account no longer in use.]

I am not seeing how Hillary selecting Elizabeth Warren would alienate anyone who wasn't already planning on voting against her. 

Probably the Moderate Heroic™ people who are deluded into the belief that Clinton is on a crusade against the 'loony left'.

[Boston Bread]

1. Warren
2. Kaine
3. Heinrich

[Ogre Mage]

Brown, Heinrich and Warren are all bad choices because a Republican Governor would appoint their successor.  We cannot afford to be giving U.S. Senate seats away, especially with the Supreme Court at stake.  I don't know how much weight Clinton puts on this but given her pragmatic nature I would guess it is considerable.  I say this as someone who likes all three senators just on their own merits.

To grossly simplify, Tim Kaine vs. Julian Castro boils down to a question of play it safe vs. take a chance.  If Clinton feels good about her electoral position then Kaine is the "safe" choice.  If she feels the need for a game changer then Castro is the best option.

Clinton has shown herself to be a cautious politician, so if it is not clear whether or not she needs a game changer, I think she will select the safe option, Kaine.

[Sprouts Farmers Market ✘]

I personally like Kaine most, but Warren would be alright. Her VP pick matters significantly less.

[Santander]

Kaine is definitely the best choice here.

[Amenhotep Bakari-Sellers]

Trump has made NAFTA an on Clinton. Clinton doesn't want to cut of Ted Strickland who both are against Trans Pacific Trade. And Strickland can help in Appalachia anyways
 
Castro

[Heisenberg]

I'd say Kaine, but Castro is second.  Kaine has both gubernatorial and senatorial experience (as well as mayoral), while Castro has had only mayoral and cabinet experience.  Kaine, overall, I think would be a more experienced, better known choice.  He'd likely solidify Virginia (though it may already be safe D this year).  And Democrat McAuliffe would appoint the successor.  Castro, however, would NOT put Texas in play.  Hillary is already SUPER popular amongst Latinos, so that wouldn't add to much.  But he would still add diversity, as well as youth to the ticket.  The other three would all cost the Democrats a Senate seat since all three come from states with Republican governors.  Plus, two women on the ticket is, in my opinion, way too risky.

[Amenhotep Bakari-Sellers]

Kaine supports Trans Pacific Trade and Clinton is against it.

[MIKESOWELL]

Warren.

[IceSpear]

Kaine. He's a safe pick, will be replaced with a Democrat, and will help a bit in Virginia.

[Amenhotep Bakari-Sellers]

Clinton needs to concentrate on CO and Iowa which shows weakness and Pa.

[Kingpoleon]

IMO, it goes:

Heinrich>Warren>Kaine>Brown>Castro. Warren might be replaced by, say, Richard Tisei. Worst case scenario, Tisei holds the seat in a special election and 2018 and then maybe is the sixtieth GOP Senator.

[This account no longer in use.]

IMO, it goes:

Heinrich>Warren>Kaine>Brown>Castro. Warren might be replaced by, say, Richard Tisei. Worst case scenario, Tisei holds the seat in a special election and 2018 and then maybe is the sixtieth GOP Senator.

I'm sure Baker would pick Tisei theoretically, but the MA Democrats have a veto-proof majority in the legislature, and they could pass a law preventing Baker from choosing a Republican.

[Bull Moose Base]

Warren might be replaced by, say, Richard Tisei. Worst case scenario, Tisei holds the seat in a special election and 2018 and then maybe is the sixtieth GOP Senator.

I'm sure Baker would pick Tisei theoretically, but the MA Democrats have a veto-proof majority in the legislature, and they could pass a law preventing Baker from choosing a Republican.

What's happening? Does everyone here think Deval Patrick appointed Scott Brown? Is everyone here too young to remember 6 years ago?

The special election would happen about a month after Hillary is sworn in. This compares with Tim Kaine, whose seat would probably be filled by special election next year. But it'd be easier for Democrats to win the Massachusetts special than the Virginia one. Unless maybe Massachusetts Democrats nominate Martha again. As far as holding a senate seat longer term, Murray or Klobuchar seem better choices, and of course Perez sacrifices no seat at all. Brown, Nelson, Heinrich can't happen.

Kaine supports Trans Pacific Trade and Clinton is against it.

She'll be for it again as soon as she clinches the nomination. Also, this wouldn't matter.

[Figueira]

IMO, it goes:

Heinrich>Warren>Kaine>Brown>Castro. Warren might be replaced by, say, Richard Tisei. Worst case scenario, Tisei holds the seat in a special election and 2018 and then maybe is the sixtieth GOP Senator.

I'm sure Baker would pick Tisei theoretically, but the MA Democrats have a veto-proof majority in the legislature, and they could pass a law preventing Baker from choosing a Republican.

Appointed Senators from Massachusetts typically don't run in special elections.