Thank you for the answers, everybody! It sounds like IJN carriers are more up my alley as I love IJN DD's, so I'll try them first. I still intend to try USN carriers, because air superiority sounds pretty scary.
Fairly new player here. Since the IJN DD's have better torps, but US DD's have better guns, and there are also differences between the US and IJN Cruisers. Does this pattern repeat with the carriers? Is there a big difference in play-style? I probably should have tested for myself during the CBT, but alas. Any reply would be appreciated.