Why do so many people, even on this site, hate on Hendrix? I've heard "Hendrix is only good because of the heroin" too many times. Most people who try heroin either end up in the hospitol, or dead, so it's slightly miraculous that he can even play while on it.
Hendrix would never directly take that much influence from a contemporary, so I doubt the Led Zeppelin think. I think he would have gone more into blues (Band of Gypsies, duh!), but in a more sonic way.
I doubt Jimi would have been able to do much about Eddie taking the spotlight, though.