From a simple math min/max perspective which some are intersested in, a naval strat is extremly unwise. Simple plus/minus math will tell you you need to add appr. 81 IPC worth of naval as CP in total accross the board (using the starting naval as ref) to even break even which means if you wanna “controll” something you will need to add more than the competition.
As CP you cant ever get into a building race with the allies as your starting income is so much less, but rather you need to as fast as possible close the incomecap.
Consider sz17. (I will assume the ottoman and russian navy cancel each out). Allies can after turn1 have 2 BS (France+Italy)+3Cruisers(UK+Italy+France which means AH wont be able to break even, even if the go all out navy. After turn2 the allies will have additional 1BS+Crusie (UK) in the zone and again AH wont be able to break even, even if they spent all during 2 turns. After this france plus Italy can with great ease together spend equal to AH for each turn.
So I have to ask how in hell are AH suppose to get controll over sz17?=)
I suppose you can counter and say “the allies dont counter my moves in my games” but then what is the point of argue the value of strats. I can ask what do you think about my “attack-AH-first-as-Italy strat”, assuming AH dont defend their borders?=)