Lets face it, everyone who posted thier displeasure over using Zachary Quinto as the 'voice' of STO is going to play the game regardless. Zachary is an obvious choice since he will be most probably be playing Spock in any future Trek movies and of all the 'bridge crew' he has the widest appeal since he's also a main character in the popular Heroes. If anything having his name attached to the product could bring in a few more fence sitters who might not get the game otherwise.
Who really cares who the voice actors are. As long as they stick to the originals for the original characters (Patric Stewart for Picard, Michael Dorn for Worf, LeVar Burton for Geordy, well you all get the idea!) I am satisfied. I always hate it when games use different voice actors for character already portrayed. Fortunately the Star Trek video games have been very fortunate to be able to use the actor's real voices.