I have put together a video of some of my biggest blunders and lowest luck. Enjoy!

https://www.youtube.com/watch?v=8R-B2AkMWAo

@Tizkit
Thanks as always for an amazing reply Tizkit. Great insight.
When I was doing some experimenting with the odds calculator it was immediately clear that submarines are the “best” sea unit in terms of best value. But I’ve found that they’re not necessarily the most reliable unit in the grander scheme of things. So taking cost effectiveness and strategic resourcefulness into account I would argue that destroyers are the “best” sea unit because they can block sea zones, hit air units, and defend @2. Not that submarines don’t have their uses, they just tend to be more situational in my experience.
I’d also come to the conclusion that carriers are awesome for expanding strategic possibilities for the fleet. And you’ve actually taught me a few new sneaky tactics I can use them for (never thought of deliberately failing to clear a path for a carrier so that I can suicide planes into high value targets!). The more options you have on your turn the better, and carriers really expand a fleets sphere of influence. But a carrier with 2 fighters is by far the most expensive addition to a fleet, although you don’t have to buy the fighters if you’ve already got a few on the board. Still, destroyers and subs can easily take out a carrier w/ 2 fighters (both unit groups costing 36 IPCs).
Its actually been a tricky question to tackle. But you and @Midnight_Reaper are right. It really depends on the situation and what your goals are. If you haven’t noticed all the conclusions in my videos tend to be “it depends”
Thanks again so much buddy. If you have any other thoughts feel free to share them!

@Midnight_Reaper
Absolutely. I know the question is vague. I don’t really want to narrow it down to any of those categories though. Taking all of that into account, plus cost effectiveness and overall strategic use, which sea unit is the best?
I’ve already made some conclusions, just curious what other people might think. Thanks buddy

I have planned to make a video on this topic and already have a bunch of ideas for what to include. But I’d like to ask the A&A community what they think.
I’ll leave it as open-ended as it gets. Which sea unit is the best?
Any insight much appreciated! Cheers

@Pejon_88 cheers!

@SS-GEN
I’d be reluctant to have any units hit @5 but that’s just me. Have you tested these stats? How was it?
Also what’s SH?

@Warpig have you come up with anything yet or just considering it?

@DoManMacgee
I agree with maximising use of existing cruisers.
Also I haven’t played 1914 so I cant really comment. But looks like cruisers are 9IPCs, attack/defend @3 and can move 3 spaces. Seems reasonable, but then again Battleships are only 12. Interesting! 1914 is definitely on my wishlist

Check the link below to watch the video:

https://www.youtube.com/watch?v=u_P4GK8o2kE

Got a lot of great ideas browsing posts here on the forums. @Tizkit also gave me his review on cruisers which had some interesting points, thanks buddy!

Cheers!

A few months ago I asked this question here on the forums. Thanks to @Tizkit , @Imperious-Leader , @SS-GEN and @DoManMacgee for their ideas.
I finally got around to putting a video together which you can find here:
https://www.youtube.com/watch?v=KrhBEZFiFXg

Cheers!