Larry Holmes - Spinks He wanted his last 2 fights to be very easy and retire 50-0 (to trump Marciano), cherry picked the lhw champ. Lost.
Im looking at the last few years here: Ishida - Kirkland Mitchell - Banks Thompson V Price Guerrero - Brewer Lopez - Ortiz Garcia - Khan Sonny Boy - Wonjongkam Bradley - Pacman (although robbery)
Some of the replies I see here are just not cherrypicks. Just cases of a favorite losing a fight. I mean if everytime a fav loses a fight you regard him as a cherrypicker, then the sport must be crouded by cherrypickers (which, actually, isn't THAT wrong, when you think about it :hat)