With the understanding that my opponent also has to bring 3 BB's and no fighters, I would take the Germans. For my BB's, I would bring Schlesien, Schleswig-Holstein and Moltke. I would bring 3 Kondors to kill destroyers from range if my opponent brings any, and for pinpointer. 2 U-66s and 3 U-510s, and the opponent's BB's won't be too hard to kill. As an alternative, bring 1 U-66, 4 U-510s and 2 Kondors and a Komet to keep my opponent from taking an objective.
Nice twist battleshipsrock; a new thought; Like the idea
Personally I think the BB's are to weak; unless you get really lucky with the Torp. rolls.
I do agree to take lesser BB's and save room for Sub's and PB's; depending on your navies strength
go with its best Sub's or PB's, i personally would never bring DD's or Cruisers to a match like this.
Something like a Repluse, Warspite, OC Hood; 2 Hudsons and a Truculent which is one of my builds
USS California USS Nevada USS Tennessee USCGC Taney Fletcher x2 150 pts
Or replace the small boys with two Sammy B's and a Kidd.
Not a criticism just some BB build bull;
First of all thats a good pick of BB's to give you some cost space; I know you said PH; just a thought Constellation for 42 is a good choice if you want MG over defense;
Second your opponent will more than likely have subs so your DD choice's gives a lot of ASW punch for the buck.
But for me i hate to bring DD's to a BB brawl so i drop to the Texas for Nevada and take 2 Silversides and a PBM-3,
both builds i think give you average USN BB's fire power with either good BB sub help or sub defense;
Something like; Alabama -- West Virginia -- California;; is a better BB build but no room for any help;