Well, how about this... I really really don't like Dave Matthews Band at all. However, I do like Ants Marching. I couldn't listen to it on a normal basis, but if I hear it, it doesn't bother me. The rest of his stuff is barely worthy of being a coaster under my beer.
Um, Smashing Pumpkins have 2 songs that I can truly say I don't mind. Bullet With Butterfly Wings and Disarm. The Beginning is the End is the Beginning isn't bad, but not great. Other than that, they don't have much of anything I can listen to from start to finish.
Nirvana - heh, funny to say it, but I'm being honest, and most of you that know me know my thoughts on this band. Smells Like Teen Spirit is ok in small doses. Gibberish lyrics as always but the music makes it ok. As for the rest of their catalogue... less coaster worthy than Dave Matthews. Although if you have a table that's slightly off balance, you can stick a disc or two under for that... definitely a worthy use.