i think i've had or used them all, including not one but 7 bitzenburgers. fwiw, i think the bitz is highly over rated and not worth the big bux they command.
imho, any single vane polycarb fletcher will be more than enuf to get the job done - grayling, bohning, jo-jan mono, bpe, aae, etc - and will not rust or tarnish in the process of years of service.
if you have a specific fletching requirement configuration, check what each fletcher can offer first. if i hadda have one, it'd be the grayling.
avoid the arizona like the plague! you have been advised!