I've used the nacra's, tiger's, and the capricorns. I think the Tiger's snuffer is the smoothest. I'm pretty sure the Capricorn's is the cheapest though, it's comparable to the fiberglass Nacra snuffer but it's aluminum. You could easily get the snuffer from Robbie Daniels. The nacra's sock is pretty slick though.
I think Trey is probably slightly biased towards the Nacra.