I'm from Mecklenburg-Western Pomerania - So you decide the name like what sounds best? that's really unprofessional... It's logic that there are more hits on google under Mecklenburg-Vorpommern, even in the english version, cuz MV (MWP) is mostly quiet unknown outside germany. 
 For me it's clear that the english name for Mecklenburg-Vorpommern is Mecklenburg-Western Pomerania... you can read that in every dictionary (one lying next to me) - this discussion is kinda rediculous...