There are a number of things I like, but I go through phases. I also like a combination, sometimes. For example:
I like spanking, and curvy ladies. I think this lovely lady would have a strong arm, don't you?
I like oriental ladies, and one of my favourite books is Venus In Furs.
I love corsets on a lady, and the School Mistress fantasy is very attractive.
Of course there are consistant themes to my fantasies, but I think even the most obsessive compulsive needs a little change, now and again. Mix it up. Don't fear the fantasy.