Anyways, I quite like combo decks simply because they provide something else to play other than control or rush.
I don't like combo decks because they play solo and never interact (except to defend)
I don't see how a combo deck is any less interactive than a Rush or Control deck. If anything, it may be more dependant on opponent action simply because if you yank any one part of the combo's "foundation" out, the proverbial castle comes crumbling down. For decks that take 3, 4, 5 or even 6 turns to get going, this is a pretty crippling defect and requires quite a bit of tactical savvy to avoid. They simply can't sit back and draw for several turns and hope to magically say "welp, I win!"