Keith Moon.
Surely the greatest example of playing for the heart there ever has been.
I dont even want to go to the ' ...but technically he wasnt very good' argument. it seems to me totally irrelevant.
when you hear moon....he touches you you....he makes you smile and laugh out loud.....and without him the who would be just another band.
moon is a titan without whom the drummer would just be the bloke at the back.
I think the lack of technical ability argument washes away the moment you hear him.....it just doesnt matter.
I would listen to moon everytime over some dismal boring technician like dave weckl or something ( weckl is a great drummer but....im sure you get my point).