Loved 2D Mk games...those were so fun...3D...not so much.
Armaggedon was cool, but I hated custom fatalities. Only because no character had a unique fatality anymore, it was all the same stuff. Character creation was cool though. Arcade/story mode wasn't. Once you beat either mode, all you got was a crappy voiceover monolouge detailing the fate of your character. No cutscene or anything. It just felt unrewarding, especiaslly given how tedious story mode was.
Anyway, 2D MK games...Noob Saibot and Smoke for the win. =P