>>6
Common Lisp pros compared to Java:
1. Less typing
2. No ZOMG OBJECTS *fap fap fap*
3. But a better object system anyway
4. SLIME
5. Uniform syntax
6. Macros when you need them (functions that write code for you -- heard of design patterns? In Lisp we call those macros and the computer handles the boring part)
7. Probably some other stuff
Cons:
1. You'll be very smug
2. You can't unlearn it ever
3. You haven't learned it yet
SICP actually teaches a Lisp called Scheme rather than CL, so you don't get CL's object system. But other than that, all apply.