Doggy is my least favourite but on occasion a girl can make it very horny. I saw one once who kept turning to look at me at the same time talking filth, telling me to grab her hair and fuck her like the slut she is. It was probably the only time I've come doing doggy.
What I really don't like is rough handling of my cock. Nothing pisses me off more than when it is apparent she has absolutely no idea on how to pleasure a cock. Fast and furious does fuck all for me.
Doggy is what I punt for. Used to see a lovely blond Hungarian/German girl in Kentish town who had fair skin, a great arse and stockinged long legs who wore her long blonde hair in a plait down her back. She had a very pretty face and used to spur me on swearing obscenities at me in Hungarian. In an hour session I'd be furiously hanging out the back of her until I was firing dust.
My first wife, who had a similar figure, would probably still be my first wife if she ever did that for me instead of her usual ironing board impersonation.
As for rough handling of a cock, I sometimes wonder if some girls have ever had a boyfriend or entered the profession as virgins. The astonishing lack of skill some display makes me wonder.