I've posted my second attempt at an Imperial Fleet, so now I'd like to post my idea for a Rebel one and see if this might be any good in competitive play (in the experts' opinions).
The idea here: head-on attack from all four frigates, with Y-Wings to take on any flanking ships/aid in attacking the big ones and X-Wings to deal with TIE Fighters that try to shoot down the bombers.
-Nebulon-B Escort Frigate (57)
--Commander: General Rieekan (30)
--Turbolasers: XI7 Turbolasers (6)
-Nebulon-B Escort Frigate (57)
--Turbolasers: XI7 Turbolasers (6)
-Nebulon-B Escort Frigate (57)
--Turbolasers: XI7 Turbolasers (6)
-Nebulon-B Escort Frigate (57)
--Turbolasers: XI7 Turbolasers (6)
-Wedge Antilles X-Wing Squadron (19)
-X-Wing Squadrons (3) (39)
-Y-Wing Squadrons (6) (60)
Total: 400 Points