It depends what criteria you catagorize with.
Largest budget?
Best cinematography?
Best editing?
Best skiers?
Best innovation?
Best trustfund?
Best overall feeling the viewer gets?
Progression from previous films?
Best friends with magazine editors?
It's hard to pick the "best" production company. There are tons of film crews out there. Who each have, hopefully, at least one person who thinks they're the sickest.