Jimi Hendrix is the greatest guitarist to ever live and I will stand by that statement until the day I die. While they're are guitarists who technically are far great in terms of ability, what makes Hendrix the greatest was how far he made the guitar player leap forward. Prior to him, the masters were Clapton and Beck, who are undoubtedly some of the greatest ever. But Hendrix approached things from a wild, uninhibited standpoint and pushed the guitar to where it became limitless, showing that there is no true end to what could be accomplished. He set the standard by showing there was no standard
But as much as I hate this, because of unfortunate bracketing, I have to go with ZZ Top and here is why!
This is based upon a band itself vs one person. In that respect: The Jimi Hendrix Experience/Band of Gypsies had just four albums before his untimely death, so we'll never know the true extent of what he could have done. ZZ Top on the other hand, has a career that spans 15 albums over 50+ years.
ZZ Top is a band that not only showed what a power trio could be, much like Hendrix did, but they also reinvented themselves when they really shouldn't have been able to. The classic era to me is Rio Grande Mud to Deguello. But they changed their sound and became more popular still with Eliminator, Afterburner and Recycler, by incorporating a more accessible sound. I still prefer the gritty old ZZ top myself
So, as much as it pains me? ZZ Top for this round