Nevada: Barbara Buckley (D Gain) [I think it will be close in the polls, and she pulls off an upset.]
Ohio: Ted Strickland (D Gain)
Texas: Wendy Davis (D Gain)
2014 will be a Democratic year, but probably not in Texas and Nevada. I'm not counting out Davis, but with Abbott running, Texas is really a long shot for the Democrats and they'll have to wait until at least 2018 (maybe 2022 if Abbott would seek a 2nd term). As for Nevada, Sandoval's sort of like Gov. Martinez (even though ones pro-life, the other isn't). They're both Hispanic which significantly helps them among their base next year for re-election in NV and NM plus I just don't see anything the Democrats could use against Gov. Sandoval that could decrease his popularity enough to make this a lean Democratic race let alone anywhere close to a tossup since he's leading by about 23 points. And in Ohio, Ted Strickland has already declared he's not running, but he has endorsed a very formidable and progressive candidate in Ed FitzGerald who still has a pretty good chance at unseating Kasich.
@IllegalOperation - Doubt it. Had that been Tom Holland with the mid 30's approval rating, it would be a sure pickup for the GOP, but just because Brownback has the name "Republican" in front of his affiliation in a state like Kansas, he'll survive.
Even though I would vote for Wendy Davis enthusiastically against Greg Abbott, I doubt that she would even come close to winning. I think that if she received the nomination for Texas governor, Greg Abbott would ultimately win with around 60% of the vote, as the Christian Right would campaign hard for Abbott due to Davis' filibuster of the anti-abortion bill that the Texas state legislature attempted to pass back in June.