Interesting and challenging topic.
As others have observed, the hard part is narrowing it down to five. Anybody can make great speakers for $20,000, right? So all you "five more" guys are a bunch of cheaters.
The spirit of the original question included not only "top" but also "ability", "fun" and - most importantly - "favorite". So, we're not really looking for "most influential" here.
It's freaky how we're all stuck in roughly the same period.
Stevie Ray Vaughan
Great listings, everyone. Your comments certainly motivated me to revisit some tunes I haven't heard in a while.