I hate to be the guy that answers a question with a question, but since there is not really a better between the two....
What do you want to use it for?
The New Vaq has the handling feel of the old Colts, so If you are wanting a Cowboy Action gun, I would go with the New Vaq., but if you are wanting something to shoot hotter .45Colt rounds, the heavier OVM would be a better choice. So in my opinion, there's not a better gun, just better choices.