With regard to the Rebel list, I've been struggling with a similar one. I think there are a lot of subtle balance issues that are currently tipping things toward the Imperials, and one of them is that 100 points is really more than you need for 3 pilots, but not really enough for 4 well equipped ships. That initially led me toward fielding elite Rebel squads, but I've come to the conclusion that doesn't work very well.
Imperial lists are going to field at least 5 and probably 6-7 ships, so with 3 Rebels you should count on being outnumbered 2 to 1. You're going to lose a ship by the second round of fighting, so that means you have to take at least one Imperial ship out every round in order to stay even--and in my admittedly limited experience, that's just not feasible.
So I would downgrade a couple of pilots to the generic version--Rookie Pilot and/or Gold Squadron Pilot--and find room for an extra one.