I have both and like both. With that said ... the A-1 is in a different class. It costs a tad less than twice the price but is twice the knife. The A-1 not only beats out the SRK, but higher priced knives as well, IMHO.
I am, however, a carbon steel fan and enjoy the benefits of Carbon V (whichever is the steel dejour at CS) and feel as thought he SRK provides great bang fo the buck. If I could have only one, it would be the A-1.