The only difference ITTL is that the last of the bombs that hit the Arizona was a dud. As best as I can tell, without that last bomb, the Arizona is actually in better shape than either the Utah or the Oklahoma. Given this situation, I presume that the situation for the Arizona is more like the Nevada, California or West Virginia. I'm wondering whether there are any long term effects of this. The BBs seemed to spend more time in Drydock for retrofits during the war than for repair, so I'm not sure the amount of time repairing her for that little damage (relatively speaking) makes much difference. Her sister BB,the Pennsylvania, after significant service in WWII ended up after the war as an Operations Crossroads nuke target, is the Arizona also likely to?