Common Lisp or Scheme?

I'm going to get some basics on functional programming. But there are too fucking many LISP dialects. I know all in all it's all the same shit, but between the two, which one should I use for these little studies?

(And yes, SICP is part of them)

>>24
I think you missed the point.

What I was saying was that syntax is basically the only thing Scheme and CL have in common, and otherwise it's hard to find two more different languages.