I tend to like all women equally. Tiny or petite women can be EXTREMELY attractive, especially if she then has a beautiful face as well. I find tall women to be kind of statuesque sometimes - like a beautiful sculpture - but not necessarily that attractive.
I think it has to do with the protective instinct innate in all men - a tiny woman looks as if she will need more of a "caveman" to protect her, and this stimulates something deeply primal in most men. A tall, powerful woman can have less of this kind of effect, especially if she is not that attractive / beautiful - she looks more butch and that can be a big turn-off, I think.