1. Tsonga, great guy, always looks happy losing
Good for him, he has plenty of experience of doing so.
What I find a bit unclassy about Tsonga (besides his stupid dance and moronic interviews) is how incredibly bored he looks when he thinks his opponent is not worthy. Silly one handed backhands, dropshots that don't even reach the net, r-o-s that hits the fence, all this combined with sour and annoyed facial expression. His constant tanking in tournaments that don't suit him isn't very flattering either.