I just finished watching _White Collar_ for the third time, and it's still as good as it was the first time around. All the main cast are superb (though my favourite character has got to be Mozzie!) and there's regular appearances by fantastic support cast too; Mark Sheppard and Diahann Carroll in particular. Sure, the show is fairly formulaic, but I don't think that's a bad thing. And the series finale is just perfect (Mozzie broke my heart in that one).
Neal Caffrey is the most suave, cool and debonair criminal to grace the screen. He dresses like the Rat Pack, has a smile that can light up a room and can sweat-talk anyone into anything. You know he's a con man but you're on his side from minute one. This is a cracking series, you own yourself to watch it.
