Tough question. Seen enough bands in my journey of life to build a geo-dome house from the ticket stubs. My 3 are:
1) Foo Fighters, though they appear to have called it a day on touring.
2) The White Stripes, with the talented Jack White on guitar.
3) Led Zepplin. This time completely sober, instead of 3-different hallucinogens, while eating chunks of hash.