Frankly it all depends on the girl you're with.
Currently I'm with a girl who gets off almost instantly during anal sex and I really like the kinky nature of it as well.
Currently I'd say it's a 70/30 towards anal mainly due to how much she likes it.
Normally I'd say I prefer vaginal sex, especially when not using a condom.
On a sidenote, I must say that I've been with a surprising amount of women who're really into anal sex, of which some seem to have prefered it!
For some reason I always used to think that very very few women really liked it.