I'm married now so could give a fuck about online dating, but you are talking about the bottom of the barrel of women.
Even if you have just a little confidence, you can date a different woman everyday if you wanted too.
Also on those profiles if you don't like chunky women, make sure it always says fit or athletic. Everything else is going to be an ape.
From my stint of online dating after my first divorce, if you message them never ask for anything. Don't ask anyone out on a date, just tell them to meet you somewhere like a bar, or Coffee shop.
These women will pretty much do whatever you want they have such poor self image, and are really desperate for anyone. It really doesn't matter what there profile says.
For websites, and I can only talk for my own area of Texas. My friend does really well on POF, he's met some really hot sluts, and he seems to hook up quite frequently.
I was acutelly surprised at the women he met on that site, although they're all retards.
If you are looking to really date someone, you just need to get a wider group of friends, and branch out your hobbies.
Anything from working out at the gym, to joining a Movie group will net you better results in the long run for an actual girlfriend.
If you are just looking to have shitloads of sex tho, those online dating sites are where it is at. You'll never meet as many diffrent women as easily as that.