Today I played a casual 300-point game against one of the local players. I was Imperial and took a zero squadron list ( link to fleet here ).
The Rebel fleet consisted of an AF2 (enhanced armament and advanced projectors, Gallant Haven) and a Neb-B (the Yavaris). He also fielded an X-Wing, an A-Wing, two Y-Wings, a B-Wing, Tycho and Keyan. The Yavaris had Adar Tallon aboard and his Admiral was Garm Bel Iblis. The scenario was Superior Positions, Imperials were the first player. As the Imperials I went into this game intent to fly though his squadrons and kill his two ships thus winning the game by tabling him. It didn't go according to plan.
The game ran 6 turns and resulted in his Squadrons killing both of the VSDs. The GSD was unharmed. The Rebels lost the Yavaris but their AF2 escaped. Essentially a pretty decisive Rebel Squadron victory. If the game would have lasted another turn I am pretty confident that the AF2 would have been finished off. My flagship VSD was finished off with the last die roll of the game in the Squadron phase.
To me my experience lends ammo to the theory that: No Squadrons beats Few Squadrons. Few Squadrons beats Many Squadrons. Many Squadrons beats No Squadrons.