I'll admit that the earlier DLR/Halen stuff was pretty good... a lot of re-makes, but with good guitar in them. I really don't like 1984 at all... some ok stuff, but not my style. I loved 5150, Summer NIghts is, possibly, my fav VH song ever. But, I'm baised; I'd listen to Sammy sing with the BAck STreet Boys.
Back to the question at hand:
Audioslave-- I don't think I've seen anyone talk about em on this board, but that's Chris Cornell (post-Soundgarden) with some of the guys from Rage Against The Machine (if memory serves). I'm a fan of Cornell, with Soundgarden, Audioslave, Temple Of The Dog, or solo-- each is a little different sound, but I like 'em all. If you don't have, give it a try!