Two main battleship of Imperium of Man and Galactic Empire duke it out.
Who will come out top?
Location: Empty space
Both has compliments of standard fighters (Fury interceptor, Starhawk bomber for Emperor-class, TIE interceptor and TIE bomber for ISD)
Round 1: Disney Version of ISD
Round 2: Legends version of ISD
40k Ships vs Legends Ships is always a mess IIRC. There's no information on propulsion acceleration for the Emperor ship I assume.
However it appears Emperor ships don't use conventional armaments and rely on assault boats that go by near it. Lunar Cruisers are the real main battleship I feel.