Champions you love getting owned by.
MID Lane AP Nidalee: (Any nidalee that pressures me out of lane makes me cringe with excitement)
TOP Lane Vladimir: (You're winning lane... and your vlad.. oh man please take some cs while your at it)
Support:
Alistair (You flash headbutted the AD carry or stupid hipster ap support to doom... Or even picked alistair because someone went Leona support.. brings tears to my eyes). 
ADC:
Draven: Who doesn't love this guy?
Jungle:
Elise: You landed your web and combo'd me correctly.
well.