i've always found bigger women more attractive. nothing against those who aren't, it's just that that both the individual aspects (belly, double chin, larger body parts) and the overall image, the wide frame have just been so appealing. The first girls i remember being attracted to as a kid were big and still are. I never even really noticed the non-big girls that way.
That being said, personality means a LOT more than physical appearance. My gf is slightly larger than average (size 12-14) but I'd much rather be with her than the first girl I was with (300-350 pounds, but mean, illogical and petty).