I think Warren would win if Hillary didn't run and she decided to. She seems to have a lot of support behind her from liberal groups, while Biden is more of a background player.
In terms of the Republican primary, I was surprised that Carson is leading in NC. That poll was from December of last year, so I'm assuming that the situation hasn't changed dramatically.
I was also surprised Huckabee is leading in Oregon- I would have expected Oregon's Republicans to be moderate Christie supporters.
These Republican primaries are going to be quite a spectacle.
Oregon Republicans are actually solid social conservatives. North Carolina I can't put my finger on.