Stevie & Ronnie - different versions of perfection! I'm not sure I hear much of Stevie in Ronnie's playing, but I know what you mean. I suppose they were both heavily influenced by the West Side players (Sam, Buddy, Otis) as well as by Hubert Sumlin - possibly the most under-rated of all the "golden era" Chicago players. I hear a lot of Hubert in Stevie's playing, though Hubert doesn't often get credited with this. People just seem to hear the Albert King & Hendrix influences.
Since we're having a blues-fest today, here's a few clips of Hubert - all too short I'm afraid.
http://youtube.com/watch?v=BYtgj5v49gE
When Hubert played London a few years ago, he had the old Ronnie Earl band with him, Dave Maxwell, Mudcat etc. Well worth seeing even without Hubert!