I must say that even though all muscle cars are cool, a 1969 camaro would be the best.  The one I want to build would be a 350 shortblock daily driver with regular looking rims(no 18's).  I plan on Deep Red with Metal Flake, and some cream racing stripes.
As cool as old muscle cars are, you cant beat a late model supra or ZX.  The racing inspired quality and low expense are to much to pass up for me. 
