as a two hour piece of entertainment star wars mightily triumphs over serenity.
a more fair comprison would be which is better Revenge of the Sith or serenity, after seeing serenity i wonder what the hell people where talking about because i was not better than revenge of the sith.
Serenity is obviously part and parcel of the wheedonverse, so i you can take that with a grain of salt. though i would agree with critics that it almost came off as buffy or angel in space, zombies or vampire creatures huh?