I been hering this for a long while but people forget the point the empire has tens of thousands of ships and the covenant only have a thousand and only control a small section of the milky way the empire very much the whole galaxy.
Secondly think of the eclipse
ITS ABLE TO SLAM INTO A EMENYS SHIP WITHOUT HURTING IT AND IT HAS A SUPERLASER
the covenant relys on plasma while the emipre relys on laser.
For those that said that the death star would blow up u r wrong cause it even says that not even a capital ship can harm it without a massive weapon like the energy projector.
Lastly ohh the sun crusher
it would be like this hi covenant (fires torpedo) bye covenant (everyting blows up due to high high amouts of energy
For those who dont know the sun crusher can make any size star go supernova.
My opion Empire wins no mader what