SWTOR or STO?

[Captain]

Now, look.
I really, really don't care if you like Star Trek better than Star Wars.
Or if you like Star Wars better than Star Trek.
I don't care about their established fanbases, yadda yadda.

I just want to know, that, just based on looking at the games, which upcoming MMO, if you could only choose one of the two, would you play?

Star Wars: The Old Republic
or
Star Trek Online

SWTOR is being developed by Bioware, responsible for the fantastic Knights of the Old Republic games.
STO is being developed by Cryptic Studios, responsible for the highly reputable MMO City of Heroes.

Based on the game content alone and what it looks like you'll be able to do in the game and what the game itself looks like, which one would you choose?

EDIT: release for STO is almost positively March 2010, and release for SWTOR has been posted on Amazon as November and then taken down, so nobody really knows its release date.