I enjoy both. My favorites are Georges St. Pierre and Chris Jericho respectively. As for whats better that tough because although they are "similar" they both try to attract different audiences. Obviously real fight fans are going to go with UFC. As for me I like a good show. UFC at its best can be great but at its worse its friggin awful, I don't have to point any further then the Silva fight at the last PPV UFC 97. At least with Wrestling, either WWE, TNA or ROH whatever the company if your getting a 25 minute match you for the most part know what your getting.
So yes I like both but like wrestling more.