MK2, I guess... Because it had a lot like MK3, but they were more realistic like MK1... Basically, when I cut someone's head off, I expect their body to fall to the floor...

It is a tie between MK1, and MK4/Gold. I like the realistic feel that the first two games had when you knocked off their head their body is supposed to fall. However, in MKII the only disappointment to that is when you ripped off someone's torso, the bottom half would still be standing. That is why it is a tie between MKII, and MK4/Gold. In MK4/Gold, no matter what you did, at least the opponent's lifeless body always ended up on the floor, even if it was cut in to two pieces.

MKII ,because they looked more realistic and gruesom,unlike MK3's cut-n-paste fatality bodyparts

Also I enjoyed Quan chi's leg rip'n beat in MK4 ^_^ HILARIOUS!