Difficult to agree on who was the most important guy in this band...
Pete Townshend (probably getting most votes) or
Roger Daltrey
or Keith Moon?

Anyway, it was certainly Pete who invented the windmill and not only that. Popularised breaking guitars, composed the group's hits,...

Their greatest achievements:
Debut: 'My Generation', 1965;
A Quick One (While He's Away), 1966
Qudrophenia, 1973. (a thrilling movie, too)

Were both at Monterey Pop and Woodstock festivals. It was a nice surprise to see them perform 'Summertime Blues' at the latter. And a faint influence for kids they weren't. Proof: at one of this summer's German festivals (sorry I forgot the name, there were quite many...) 'My Generation' saw live covers in full gear... ( meaning mod gear, surely)