In my opinion, Superior are the best aftermarket gears, Very quiet. Followed by Yukon.
I have heard good things about Nitros but have no personel experience with them.
yukons get alot of flak for being the worst, but 25% of guys on here disagree. If i were you I wouldnt risk the quality of my R&P so i would run superior since they have like 100% approval rating
Another thing to consider. If we make a reccomendation on this forum, we're here to hear about it. I dont see the other guys posting, but maybe I dont search hard enough.