People that keep complaining about cvs forget a big part that comes with a cv, and i'm surprised it hasnt been brought up yet by anyone.
good cvs try to sit behind their fleet, bad cvs sit behind an island. both resulting in a simple fact: neither cv is there to "meatblock" a flank, capture a point / actively go for the objective. 1 less ship on the flank results in less dmg being split up -> ships on said flank are bound to go down earlier if the carrier focuses on the other flank.
also this game is SUPPOSED to be a teamgame, have you ever tried to bomb a hightier bb that is guarded by cruisers? no? yea, you better don't. 90 AA rating bbs paired with ca suppressive fire & 80+ aa ratings result in a massive havoc on your planes. let alone the hightier bb alone will wreck plenty of your planes already.