In terms of big cumshots Yves is unbeteable, especially when he's horny and is into the girl. His early days with GIO were memorable. Here's an example, GIO 617 with Jolee Love, he painted that gorgeous face with his sperm.
TBH I cannot recall any "best" or "biggest" cumshot, since most of the cumshots on this site is very disappointing. It's sometimes really embarrassing to see male actors struggling to squeeze out a little liquid. But I'm shring something I think that's not so bad.