N64 had MK4.
PSX had MK4.
DC had MKG.

N64 had much better graphics then PSX.
PSX had FMV endings that were kinda cool but I don't think outweigh the rest of the bad graphics.

MKG was the most like the arcade for graphical quality and had more characters (and FMV endings). I guess it would count as the best out of them probably.

MK,,gold... is a fun game but,,, it is on the - DREAMCAST..... it have some other characters that MK4,,, DON'T have... MK,GOLD have kitana,, baraka,, sektor,,mileena,, cyrex,, and.. kungLao... adding to the MK4 Characters select sreen... and they all have 2 FATALITIES...

Yes, just like the above poster said, Gold has the best graphics (obviously, as it is for dreamcast) and the additon of Kitana, Mileena, Baraka, Cyrax, Kung Lao, and Sektor (a secret charcter) all with two fatalitlers. Most of their fatalities however are 3d remakes of their old ones (like a 3d impale and lift for baraka and 3d flamethrower as well as compactor fatalitly for sektor). If you have dreamcast, get Gold. Otherwise, stick with the N64 version. It may be a far cry from the arcade, but at least it is closer than the awful graphics of the psx version.