I absolutely adore what I call "classic super saiyan" aka the Freeza - early Android look.

The way Trunk's and Goku's hair flows here, makes it look like...well, hair. Not being stuck in that one ridged style is just really cool looking to me. The first Cooler movie did this as well, and is another reason I love that classic look.
The other defining thing to me is that classic "has no lines." By that I mean, the later artistic renderings of super saiyan have a bunch of black lines to add detail to the hair, and while that can look cool too, I still prefer the more "blank" look.
When I was younger, and didn't have access to any clip of dragon ball I wanted on a whim, so I actually wasn't sure if I had just imagined that super saiyan looked different from how it was later on. Not until budokai tenkaichi 3 did I realize that my memory wasn't faulty.

I still live playing as Goku (mid), just to see this version of super saiyan.
Edit: Damn it! I got ninja'd about mentioning BT3!