Pretty balanced, but im my opinion rebels win...
-The TIES are owerpowered by A-Wings and Corvettes.
-Star destroyers and the broadside are pwned by Mon Calamaris.
-You can take shields down quickly by Gunship's missiles (which go through the shields)
-They you just use the remaining force to take down those acclamators and tartans.
-You just have to prevent Tartans destroying all your x-wings....
The rebels win then, but with lots of loses.