Delfino plaza is pretty great, as is the Mario racing stage (forget what it's called)--I love when other people stop paying attention and get destroyed by passing racers. And yeah, Wario Ware is awesome.
I can't stand most of the scrolling levels (Rumble Falls and Super Mario Bros), which is strange because there were some scrolling levels in Melee I thought were pure genius. And I'll second the distaste for New Pork City, though I have to say I really like the Mario Bros stage. I don't know, maybe it's pure nostalgia (Mario Bros was one of the first games I ever owned, way back when for my Atari 2600), but I think it can be a blast to play on. Now if only the POW block did more.
My consoles and the fates they suffered:
Atari 7800 (Sold), Intellivision (Thrown out), Gameboy (Lost), Super Nintendo (Stolen), Super Nintendo (2nd copy) (Thrown out by mother), Nintendo 64 (Still own), Super Nintendo (3rd copy) (Still own), Wii (Sold)
A more detailed history appears on my profile.
