I suppose this is like buying a new car in August or September, you have the option to get the last years model, or next years model. It's the same car with some minor differences / imporvments (maybe even a regretion or two).
I wonder at this stage if the V3 just sounds a little differnt, not better or worse. Some may find that difference as better, others may not. I don't doubt there would even be some that like the V2 over the V3 (in a true blind test).
Our session at the Axiom plant last weekend proved that theory!
I would go with the V2 because that is what I own and i simply don't know anybetter.