When my mates and I used to play a heap of MK II on the Mega Drive / Genesis, the rule was that you'd always have to have to use the random select to pick your character. I was always stoked to get Kung Lao, because it meant I'd get to pull off what we called his "side of beef" Fatality. You know which one I mean.
And Subbers always had that mad hard-to-pul-off fatality, which was so satisfying to pull off properly.
But I really used to love it when the console would dole me out some Johnny Cage. Not that he's my favourite character per se, but it gave me a chance to pull off his Friendship. Man, that used to piss my friends off. Quality.