Maybe I'm just stupid and missed it but is there a good write up on the differences between classes? It wasn't mentioned in the tutorial and now I have 30 something girls and I have no idea what I should be doing for a team comp :X
I'm talking out of my ass here but considering what I've seen :
Destroyers are the fastest moving units, with weak but quick firing main guns, no auxilliaries but nasty torps on a cooldown. They also have the lowest hp but highest evasion (nothing like getting hit by torps and seeing MISS)
Light cruisers/Heavy cruisers have bigger (multi shot) but slower firing main guns, have at least one auxilliar turret and usually have good anti air potential. They move slower and have less evasion but more hp than DDs.
Battleships are super slow, can mount auxilliary gun(s?) and have a hilariously overpowered main turret which fires on cooldown. I think they along with carriers cannot be part of the vanguard line? According to ingame tips when aimed manually the main gun deals 20% more damage.
Carriers are the bane of flagships. They launch fighters on cooldown to counter enemy attack planes and deliver insane damage on cooldown along with clearing the entire screen of projectiles when they launch their squadrons. The cooldown is super long so it's best to keep them for the flagship of the fleet or, if you run multiple CVs to use them one at a time in order to leave at least 1 for the flagship : my Enterprise basically one shots every single boss I've met so far.
Beyond these general informations tons of ships have special skills which can influence the battle and can make ships of the same class quite different from each other.
Please correct me if information from here is wrong (and it very likely is, lol).
Edit : I keep forgetting to post about my boatgirls : I got Enterprise almost straight away, on the 5th build or so, lol. Went with Z23 at the start and got Laffey to drop somewhere in 2-X. Other notable units built : Belfast, Ning Hai, Yorktown, Helena, Houston, Indianapolis and London. I got a bunch of rares as well, most notably Portland, Sims, Fletcher, Northampton, California, Juno and a couple Repulse, ensuring I can limit break her all the way to 3 as soon as she gets of age (she's my big guns girl in Fleet One). I need to cool my jets on building though, I'm out of Tesseracts now ^^