Vaginal is always easier and faster, but I am such a fan of anal sex it's not even funny. Love it!! I'd do it all the damn time if the prep didn't take as long
I like them both a lot, in different ways. I agree with other posters that vaginal sex seems to be faster (and for me, requires a lot less warm up), but they both feel so good, and I wouldn't want to give either up!
I have yo say that it depends on the mood for me, when I am the mood all is perfect when I am not my body seems to tense more causing it to be uncomfortable. All in all I have had great experiences with anal.