There are so many to choose from now.NAP QuickSpin,DuravanesAAE Speed Flyte and Elite Plasticfletch vanes etc:

I use 4 inch AAE vanes for most applications.

I've tried both AAE and Duravanes. Don't notice a difference between either in terms of flight or durability. Just bought a bunch of Duravanes at a good price so I'll probably be using them for a while.

I used to use easton vanes, but since they have stopped making the 4 7/8 inch, I have switched to AAE Elite, which I believe maded the eastons. I have tried other vanes, but still go back to the AAE.

The Duravanes are my favs, however if I was going to shoot a fixed blade b-head I would probabaly opt for the Quik Spins based on my own testing.