The best, no contest. Yes, Lena and Gabbie are close but Gianna's knockers are the best in the business. I've lost count of the amount fo times I've shot to her videos.
This scene is a work of art! GM is just THE hottest woman in porn. I was wanking with a guy on one of the cam sites the other day and we both pulled this scene up and watched it in sync. We didn't even last til she got her tits out.