From the Excelsior scaling thread:
A comparison of a 775m Enterprise with a 120m Defiant
Note that the scaling is about the same as the scene in First Contact
, as the Defiant
is about the width of the lower secondary hull and obscures two of the escape pod hatches.
So we even have visual evidence pointing to a bigger ship. (Granted given how seldom the Enterprise
is in any comparable context of other ships, this is probably an oddity)