Well to me the term genius applies to the creator, not the replicator. Jimi was easily the best performer around, but Prince was every bit as good. But for genius you have to go back to guys like Les Paul, Muddy Waters, and Chuck Berry. There are a lot more but they created the sounds guys like Jimi, Eric Clapton, and many others perfected.
BTW: My favorite watch tower version is DMB live.