I dont give a toss about his attitude, his girlfriend or what shades he wears, hell they are all miserable bastards when they want to be (non worse than Vettel when things are not going right for him!). I like Hamilton simply because of what he can do in a F1 car, he has been quite simply the most exciting driver to watch in recent years and it was exactly what the sport wanted back in 2007. In his first year he had a double world champion ripping toilet doors off their hinges and he only failed to win the WDC by 1 point, in 2008 he won it.
IMHO its a big loss for Mclaren and a big gain for Mercedes, only time will tell or not if its the right decision. I just hope that Mclaren give him the car now for the rest of the season to try and have one last chance of stealing the glory on the final lap of the season from Alonso.