Do you tend to go for characters of your own sex?

If given the chance, yes. I don't know if its because of the stigma of female gamers... but if I have the choice of playing man or woman, I will almost always choose woman first... even if the pluses/stats of the man are better suited to my gaming style.

Do you think characters of your opposite sex don't, or do, suit roles for particular reasons?

Not really. I always immerse myself in the game, so the characters sex stops mattering after awhile.

Have you ever noticed/ known somebody that won't play as the opposite sex? (Give examples)

I can't say I have IRL. The only person I've seen IRL game as much as me is my guy. He will always switch between the two. Although I've noticed we're opposite. If given the choice I will play a female first, male second. He will play a male first, female second.

Generally the games have a choice of being good or bad. I end up playing a good female first, bad male second. He's the opposite, will play a good male first, and bad female second. Its kind of neat, because we get to see all spectrums of the gaming aspect that way.