what composition have you found to be particularly useful all around? I dont know why but two Medium to Big Fleet size usually works out best for me.
3 Kols, 2 Dunovs, 2 Marza, 1 Akkan, 27 Garda, 20 LRF's, 20 HC's, 20 Percheron, 20 Hoshikos, and 5-10 Scouts
Usually when I get into long drawn out games Ill build twin fleets only changing up the Marzas and Akkan, making it 2 Sova's and 1 Marza. Alone these Fleets usually hold up extremely well against larger fleets unless heavily hit by SC or extremely large numbers of HC. Other then that Ive found most variations of an enemy fleet cant hold out against my single med sized fleet.
In this game I didn't have to divide my fleet, though even when I've played in regular sins I usual ship-swarm also.
Here are the last ones: 4 Akkan, 3 Dunov, 5 Marza, 4 Kol; maxed out on Percheron, and 1 Cielo to fill space. This didn't work so well, as initially I was doing a 4x4 of those ship and a level 10 Dunov got destroyed, so I replaced him with a Marza. The enemy increased his amount of fighter craft to compensate for mine, so even with the Akkans autocasting Armistice to protect the fleet, nothing really got done.
1 Akkan, 4 Sova, 4 Marza, 3 Dunov, 4 Kol; 50 Garda, 30 Hoshika, 10 Kodiak, 30 Percheron, 20 Arcova, 50 Cobalt, 20 Cielo, 10 Ogrov, 10 Krosov, 50 Javilis, and 1 starbase constructor ship. This is the fleet that I initially used to clear the pirate base, and it lasted about 4 hours before losing any ships.This works better on offense than standing still though, since if left sitting all the scout frigates do is absorb ordinance... rather than clear mine fields.
One that I had used prior to the September 30th update, for use in a five star random map, consisted of 4 Kol, 4 Marza, 2 Akkan, 3 Dunov, and 3 Sova. I don't remember the frigates or crusiers I used though.