This discussion is about what power might buy a cruiser. Not a number crunching which is the better buy dd vs cruiser debate. Anyone that has played the game would tell you that having a destroyer screen for any fleet is a top priority to allow your big guns (bb’s & ftrs) to continue to roll in battles. Most would also include cruisers as a big gun (does roll at 3), and take a dd as a casualty before a cruiser depending on if the enemy has subs on the board. There is no doubt that you will buy many more dd’s in a game then cruisers, but to say that cruisers should never be bought is very short sighted, because they have a role in the game. It might be limited, and situational, but can be very successful, and all the axis capitals are coastal. There is also the old “I don’t roll deuces very well” LOL.
Just looking at the western powers in the Atlantic (you are normally building a combined fleet), as the UK early in games your trying to rid the Atlantic of subs and get a fleet going at the same time, so many dd’s will be bought to chase down subs. Once the US starts coming over, and the sub threat in the Atlantic diminishes you are looking to build a surface fleet that will withstand a hit by the Luftwaffe combined w/German subs generally hiding in the Baltic at this point (could also be a double hit w/Italy). The western powers need to make a landing, but can’t afford to lose the transport fleet, so your likely to buy more dd’s to screen and a couple carriers to get air support if/when you leave the safety of the UK airbase. A cruiser added to the mix might be more the fact that you can’t afford two carriers, so you buy 1 carrier and a cruiser to get higher def rolls (because you already have a good dd screen). As the UK you are spread pretty thin and just might have to spend some IPCs in S Africa to keep the fight going. Keep in mind that you generally also have some US ships to beef up the Royal Navy.
Besides fleet protection, cruisers also offer cheap bombardment. Having 2-3 cruisers and a BB in the US Atlantic fleet (keep turn order in mind, and the US starts with a cruiser in the Atlantic) can also be very helpful in two ways. 1) If the Euro axis stack the coastline, you can bombard them to soften up the landing. 2) Because of potential bombardment, and the vast coastline they may pull back for a counter attack, leaving the shores weak or empty. In either case the cruisers will have an effect on the enemies decisions (and that isn’t measured in the best buy debates). If you can easily land a large US ground force, and have the UK reinforce your position with more ground, an AA gun, and the entire RAF the axis could be in trouble. Lets see 3-4 destroyers clear a coastline.
Cruiser(s) can also be helpful to the Anz. The US kills off Japanese blocker ships, NCM the US fleet next to one of the DEI Isles, and the Anz follow them in to kill off any Japanese inf to capture it. Bombardment could make this easier if they only have one transport and no air power available.
All I’m saying is that bombardment (or even the threat of bombardment) can be part of an effective strat. It’s like SBR, some will say it is the worst bang for your buck (to much risk), but some use it as part of the big picture and it works well for them.