It's obviously all down to personal tastes and what-not, but I've honestly never found myself being either instantly attracted to, or falling for a bigger woman.
Rightly or wrongly I tend to equate a persons size to their level of health and lifestyle. In my experience (and that's all anyone can really go on) my larger friends (male and female) tend to get out less, exercise less and eat less healthily than those that try to stay more in shape. You can't fight your genes, but I always try to keep myself looking my best and tend to hold other people to the same standards.

I'd love to just 'not care' what others look like, as I'd probably find someone a lot quicker, but the attraction has to be there!

It all comes back around to get me though; for every profile I'll dismiss for my personal reasons, 2 others seem to dismiss mine because I'm a short-arse!!

Bugger-all I can do about that though!