Street Fighter II, need help understanding and picking a version

I have World Warrior [CPS1] Turbo [SNES] Champion Edition [CPS1] Hyper Fighting [CPS1]

Which is the definitive version? And which is the most famous one? In my research I feel like this is a Dark Stalkers situation where the tournament favorite actually isn't the lastest release. So I'm trying to understand what these versions are and which to go with.