NOTE: This thread is entirely opinionated. Federer - Oftentimes doesn't give his opponent enough credit, always chalks losses to his bad performance. Smells of implied arrogance and superiority - his 15 jacket and this commercial is proof enough of that. http://www.youtube.com/watch?v=OQbyDGHlTd4 Nadal - Celebrates like a raving lunatic after winning each point. Has in the past attempted to disrupt the flow of play when a match wasn't going his way. Boring play style (moonball, moonball, moonball, etc...) Picks his butt. Djokovic - Frequently smashes rackets and swears in Serbian. Bad habit of quitting a losing match by faking heatstrokes. Very loud and awful sounding grunt. Murray - Ugly serve and forehand. Often waits for his opponent to make to make an error instead of attacking. Worse on court behavior out of the top 4. Takes his anger out on the ball boys. Really sh*tty personality overall and deadpan humor.