Why did you pick your faction?

This topic is based on pure curiosity.

1) Alliance & Horde, why did you pick the faction (and the race) you did?
Keep in mind it's about your faction, not the race.
2) If you could and wanted, why would you try the opposing faction?

1. I picked Horde, furthermore undead, because I think their warlocks are the coolest.
Any deeper meaning behind why i chose horde?, nope not really.
1. Yeah, would be cool with some new stuff to look at, I envy the alliance tiger mount, not to mention they have somewhat a cooler capital city, such as stormwind, no equals imo.