i have used ripcord for quite a few years and i like them. can't say either way about the rest of em because i have never used them. used prongs before the ripcord, but would never go back to that. as for noise; i put a small strip of moleskin in the fork for the arrow to ride on and never makes a sound. i use a small tie-wrap to secure it. you could tie it with serving string also.
good luck with whatever you choose
I installed the Limbdriver on my Bowtech Allegiance this week. Got it tuned up night before last and let the first group fly. I was very impressed. My tight groups got tighter. Gotta be careful not to shoot nocks off now. Bow is more quiet, too.