I to thought of the German "pocketbattlerships" so I looked up the specs on the Graf Spee.
Graf Spee had 6 x 11" guns; Alaska 9 x 12"
Graf Spee had 8 x 5.9" guns; Alaska 12 X 5" guns
Graf Spee had 6 x 4.1" guns; Alaska nothing comprable
Based on these spec I would have to give the Alaska Class a slight edge based on the Main Gun battery.
The Alaska had about triple the armor of the Graf Spee on the deck and the armor belt and twice the arnor on the turret face. Alaska also has a 6 knot speed advantage over the Graf Spee as well. So in a slugging match the Alaska would have a substantial edge over the Graf Spee, in my opinion
The one advantage that the Graf Spee did have was that it was armed with 8 21" torpedo tubes. However torpedoes don't typically have that much effective range, especially if you are trying to stay out of 12" gun fire.
Regarding a battlecruiser designation I think that the main gun battery of the Alaska Class would fall just short of that catagory as typically a battlecruiser carries battleship guns with out the battleship armor.
Regards
alfa6 ;>}
The Alaska and Guam were indeed superior to the Graf Spee. As for being a battle cruiser, it is arguable if not clear. Your case of the main armament being less than contemporary battleship keels being laid is well taken, but there were still many old battleships then in service with main armament similar to the Alaska's. The desire by some to call them battle cruisers rests on their large (if not 15-16") guns and their fantastic speed. What this analysis leaves out is their excellent armor, which for a 16" gunned BB would have made it a battle cruiser, but for 12" guns made them well balanced.
It is my opinion that their 12 inch guns, comparable armor, and excellent speed made them fast battleships. Remember that it is not just the diameter of the gun, but its caliber. These 12" rifles were superior to most earlier 14" guns in range. Had they appeared in 1914 they would have been the best "heavy battleships" in the world. Coming on the scene toward the end of WWII, they were light fast battleships.