I like Smashing Pumpkins a lot. Siamese Dream is a solid alternative rock album. At times it is too indulgent, but there are strong songs on it. Melon Collie is my favourite album of theirs. It is extremely versatile and Corgan shows a lot of craft in his writing.

I like pretension in rock music and like artists who are willing to indulge themselves by producing something a bit different. I think at times Billy Corgan did that with a lot of aplomb. Cobain was much more a one trick pony for me.