Kind of players per faction

If you were curious as to how the population balance is playing out, here's some statistics. swtorprogress.com | SWTOR Game Stats and Progress
Holy shit, everyone is playing inquisitor (mostly sorcerers, I've heard). Also holy shit, 2:1 ratio of imperials on pvp servers.

The question I have about choosing a faction is this: What kind of players are on each faction? Is it a comparable republic=alliance imperial=horde? Are imperials griefer douchelords? Are republics carebear queers? Can anyone in beta shed some light with the power of gross generalizations?

Imperials are cool guys, they're trying to help you out. You should listen to the Imperials.

I'd say Imperials will outnumber Republic for the simple reason that good is dumb.

That, and the KOTR games had a definate republic bent since there werent really any active Sith planets, just the ruins on Korriban. Sith is a change of pace in the franchise.