I owned a 1993 Exciter 2 LE, it was a great sled and I loved the thing, but I had a lot of problems with it not running well, the engine seemed to be very finicky, and actually the local dealer refered to Exciters as "Exploders".
Pros of Exciter:
Light weight
better handling
good gas mileage
Pro of Vmax:
Able to have reverse
better reliablity
better performance
still able to find performance parts fairly easily for engine mods for Vmax
I have owned my 95 Vmax 600 since 2001, have not had one problem with the sled yet, it runs great every year, the rear suspension on it sucks but the Exciter rear suspension is no better. What is the reason you are looking to change sleds? One thing to consider is if the Exciter is an SX, if it is, I would buy the SX
Pro's of the Exciter II SX:
very rare
better front suspension
equal performance to Vmax 600
great looks
oh, and did I mention it is rare