I put Tiger, but really you should find a LFS that has all 3 varieties, and just watch them.Pretty soon you will see a fish you like best, and whatever colour it is, that's the one for you.
I always liked the albino tiger. However, I just picked up a beat up, starved juvenile oscar the other day that had a nice pattern. He is a black tiger with a 'walnut' type pattern:
I havea black Oscar i love him, even though he is pissed, he hasnt gone black he is still really olive green, for which is crazy, and he is @ almost 7 inches...But i love tiger oscars, good personality, always moving