the only correct answer here is the f***ing beatles. what is wrong with yall. greatest band ever and always will be. frank stallone is a close 2nd though.
There is no one answer to this question. Yall need to go: pre~66 67-77 78-90 91-2000 2001-? You and Manny should make a bracket.
Example: How would somebody like James Brown get slotted for this competition? He was working hard both before 1966 and still had Game from 1966 onward.
His best was 65-77ish, so I cannot answer your question or really help you out in any way at all. The best ones span decades: Temptations, Zeppelin, Stones, etc...