New Senate Rankings

[MarkWarner08]

Democrats:

Strong Dem

Illinois -- Dick Durbin is the 2nd most powerful Democrat in the Senate and is beloved back home.
Massachusetts -- Moving on...
Delaware -- Will Joe Biden leave early for Beau Biden? Probably not?
Rhode Island -- Most Democratic state in the union.
West Virginia -- WV GOP's bench is pathetic.
Michigan -- Probably Levin's last term.
Arkansas -- Mark Pryor is pious Chrisitian and the son of a popular politician.
Montana -- Who will be the GOP's sacraficial lamb?

Likely Dem

New Jersey --  Steve Rothman, Robert Andrews, and Frank Pallone have a combined over $6 million COH. Isn't it time for NJ Dems to give one of them a shot at this seat.
Iowa -- Steve King/Tom Latham, would you like to be the 5th GOP House memberto lose to Tom Harkin?

Lean Dem

South Dakota --  Unless Johnson makes a major gaffe or fails to tend to the interests of farmers, expect Democrats to hold this seat.

Tossup

Louisiana-- Is Mary Landreiu doomed? Probably, but if Kennedy doesn't run, she will retain her title as the luckiest U.S Senate incumbent.


Republicans:

Strong GOP

Idaho -- A Democrat will win an Idaho Senate seat when pigs fly and....
Wyoming -- John Barasso/ Mike Enzi will stay as America's only all Italian Senate delegation.
Kansas -- Pat Roberts is a less voluble version of John Warner -- this elder statesman is a lock for reelection.
Mississippi -- A Democrat winning a Southern Senate race in a Presidential election year?
Alabama -- A Democrat winning a Southern Senate race in a Presidential election year?
Georgia -- A Democrat winning a Southern Senate race in a Presidential election year?
South Carolina-- A Democrat winning a Southern Senate race in a Presidential election year?

Likely GOP

New Mexico -- Could Domenici stumble on the stump?
Oklahoma --  Jim Inhofe, perhaps the most odious man in the Senate, will likely win reelection.
Tennessee -- Expect Fmr Gov. Ned McWherther's  rich son to make a run
Texas -- Mikal Watts + $15 million + strong Democratic ticket + surge in Hispanic turnout would probably still come short.
Alaska -- Mark Begich could make this race worth watching
Kentucky -- South Dakota '04? Stumbo's no Thune.
North Carolina -- wealthy Democrat could put this race in play

Lean GOP

Oregon -- Smith starts with edge, but climate will likely turn this race into a toss-up.
Maine -- Susan Collins is stronger than Lincoln Chafee and Maine is more Republican than Rhode Island, but the anti-Republican tide could also be higher.
Minnesota -- As others have already said, a generic Democrat will win this race. Sadly, Al Franken's probably the next Ollie North, a fatally flawed candidate who loses in a good year for his party.

Tossup

Virginia -- Warner is the most popular Virginia Democrat since Thomas Jefferson.
Nebraska -- Kerrey vs. Johanns = 50/50 race till election day.
New Hampshire -- If Shaheen doesn't run, Sununu could hang on.
Colorado -- Mark Udall's still a Boulder liberal, but this race is his to win.

[MarkWarner08]

Democrats:
Virginia -- Warner is the most popular Virginia Democrat since Thomas Jefferson.
Nebraska -- Kerrey vs. Johanns = 50/50 race till election day.
New Hampshire -- If Shaheen doesn't run, Sununu could hang on.
Colorado -- Mark Udall's still a Boulder liberal, but this race is his to win.

You forget about Harry F. Byrd Sr.

That's a good thought, but his racist past has soured his reputation.  Anyways, when I think VA politics, I think of the man who started it all, Thomas Jefferson.

BTW, nice to see you're on the Warner 08 moniker bandwagon --  originally, there was just me, now, there are three!

[MarkWarner08]

Illinois -- Dick Durbin is the 2nd most powerful Democrat in the Senate and is beloved back home.

Bit of a stretch.  I've been here since before he won the seat, and I've yet to witness love for him.  He's still safe as milk, though.

You're right, he's not quite beloved, but he's pretty well-respected for his power in the Senate. 
No offense, HardRCafe, but I guessing if the Illinois voters you hang out with are anything like you (Randy Graf sympathizer), then they probably don't like any Democrat not named Zell Miller.

[MarkWarner08]

Just updated:
Democrats
Strong Dem
Delaware
Illinois
Massachusetts
Michigan
New Jersey
Rhode Island

Likely Dem
Arkansas
Iowa
Montana
South Dakota
West Virginia
Virginia

Lean Dem
Louisiana
Minnesota
Colorado
New Hampshire
Oregon
Nebraska
New Mexico

Republicans
Strong GOP
Alabama
Alaska
Kansas
Mississippi
Oklahoma
Texas
Wyoming
Wyoming

Likely GOP
Georgia
South Carolina

Lean GOP
Kentucky
Maine
North Carolina
Tennessee
Idaho
Here's the latest map:

Why do you list several Republican incumbents in the "Lean Dem" pile? As of right now, every non-scandal tarred incumbent begins the 2008 campaign with an edge. Even ethically challenged Conrad Burns nearly crawled back from a double digit deficit in the polls.