If it is the most talent, Evens.
I would go Jennings over Curry. Stats (outside of shooting %) are not that far off but Jennings had a bigger impact on a team, lotto to playoffs. (though not by himself. Bogut also had a big impact)
I'm sorry, you can't win ROY if you shoot below 40% for the season...you just can't. I really think the Bucks' success this year had a lot more to do with Bogut than it did with Jennings.
Luke Ridnour has played more minutes down the stretch than Jennings has; you have to attribute their success to his play at the 1 to a large degree as well.
Here's another argument for Curry:
Last night as I was falling asleep, it occurred to me that the Kings are probably going to get another high draft pick. You know what? I couldn't really think of many players that I'd want to see go to the Kings, because their development would inevitably be slowed by having to play with a ballhog like Tyreke. Can you imagine him trying to play alongside John Wall? How about Kevin Martin-esque Evan Turner? DeMarcus Cousins? I wouldn't wish Sacramento on any of those players.
On the other hand, any of those guys (except perhaps J-Wall) would make a great dynamic duo with Curry. The real guy the Warriors need to get rid of is Monta Ellis, who ironically is a shorter version of Tyreke.