Bitzenburger is generally regarded as the best fletching jig on the planet. I have one, and wouldn't disagree. However, I have a friend who's an expert archer (multiple 3D awards) who swears by the Arizona EZ Fletch (2 degree offset, I think, with the Blazer vanes). He says the AEF works better with the Blazer and Predator vanes. I have a Bitzenburger (Right helical) which I use for feathers and 4 inch vanes. I have an AEF on order for use with the Blazers. Hell...as much money as I've already spent on my setups, the cost of a couple fletching jigs is barely even noticed any more. Most archery shops use Bitzenburgers (in multiples, as described above), but there's one in my area which uses AEFs. The downside to the Bitz is that it's bulky, comparatively slow, and expensive, but does a helluva job fletching arrows, once you get it adjusted properly (and that can be a real PITA with the small diameter arrows using helical). With the AEF, it's fast, less epensive, and you can throw it in your bag to take to the hunting camp for emergency repairs if you want. Plus, there are newer models which work well for carbon arrows and Blazer vanes, which seem to be what most archers are using nowadays. I think either one will do you well. I don't have any experience with the others, although a co-worker bought 6 or 5 arrow Jo-Jan jig...it wasn't nearly as precise as the Bitz. Ho

Hope this helped any,
Joe