I don't like Muttiah Muralitheran for a number of reasons. Firstly, its very difficult to spell his name, and I probably got it wrong anyway.
The main reason, however, is that he is almost guarenteed to finish his career as the highest test wicket taker ever, when I believe that accolade should belong to Shane Warne. Warne has greater ability, and can out-think batsmen in a way Murali doesn't seem to be able to. Instead, Murali relies on the doosra, which many believe to be an illegal ball.
There are also his actions towards Nasser Hussain in a ODI between Sri Lanka and England. When he heard Nasser call him a 'chucker' to his team mates, instead of letting his ability with the ball do the talking, he complained to the umpires and got Nasser in trouble when it wasn't required at all.