Hell yea he's an underrated player, Always had great lines, but that's the breaks when you play with a very dominant guitarist like Jake E. Lee. But I always thought that he did a great job of standing out when there was room without sounding like he was yelling "Hey look at meeeee!!!!!!" I seem to remember reading an interview with him where he mentioned that after Badlands ended there was some talk of him joining Ozzy and that Ozz had always respected his playing, but it didn't come to be for some reason. Anyway, Badlands kicked a$$ and to this day I miss having Ray Gillen in the world. I don't know how much of Badlands you've heard, but if you've only heard their first album (Self Titled and best selling) you should at least get their second album, Voodoo Highway. That album kicks!!!! Their last album, Dusk, is good to, but it you can only get one, get Voodoo!!! And if you like Gillen's vocals you can find places on the web that are selling his Sun Red Sun project and you could try and track down the albums he did with Rondinelli.