RF puts out good solid products, just don't try to win any SPL contests with 'em.
Alpine is by far the highest-end of the manufacturers you've listed. Expect to pay a premium for their top-notch quality. I have almost all Alpine stuff in my 3rd Gen ('cept for the RF 2-channel sub amp ). I'm very satisfied.
Kicker is basically the same stuff as RF in my opinion.
If i were to build a system using the same name it would be kicker or alpine. But best bang for the buck is kicker. Kicker has decent subs decent amps and some damn good speakers. Alpine cost a little to much for their quality. Their is better quality for the alpine price. Blaupunkt is all look. Pretty much garbage. Rockford has good amps. RF subs are average. Nothing spectacular.