1. Turrets
Used 1930 13' as reference. Base stat as it is shows when you first load up ship designer
Damage was all the same

Russia
Rotation: 3.82 deg/sec
Reload: 57.8 sec
RoF: 1.04r/min
Muzzle Velocity AP/HE : 732/771
HE-AP Penetration Belt/Deck, Accuracy (10km): 0.2-19.9/0.1-7.4,3.7%

USA
Rotation: 3.9 deg/sec
Reload: 53.6 sec
RoF: 1.12r/min
Muzzle Velocity AP/HE : 715/753
HE-AP Penetration Belt/Deck, Accuracy (10km): 0.2-19.5/0.1-7.3,3.5%

Germany
Rotation: 3.92 deg/sec
Reload: 54.9 sec
RoF: 1.09r/min
Muzzle Velocity AP/HE : 721/759
HE-AP Penetration Belt/Deck, Accuracy (10km): 0.2-19.6/0.1-7.3,4%

France
Rotation: 3.05 deg/sec
Reload: 69 sec
RoF: 0.87 r/min
Muzzle Velocity AP/HE : 738/777
HE-AP Penetration Belt/Deck, Accuracy (10km): 0.2-20/0.1-7.5,3.2%

UK
Rotation: 3.89 deg/sec
Reload: 52.3 sec
RoF: 1.15 r/min
Muzzle Velocity AP/HE : 710/747
HE-AP Penetration Belt/Deck, Accuracy (10km): 0.2-19.4/0.1-7.2,3.5%

A-H
Rotation: 4.04 deg/sec
Reload: 54.9 sec
RoF: 1.09 r/min
Muzzle Velocity AP/HE : 721/759
HE-AP Penetration Belt/Deck, Accuracy (10km): 0.2-19.6/0.1-7.3,3.8%

Italy
Rotation: 3.84 deg/sec
Reload: 49.9 sec
RoF: 1.2 r/min
Muzzle Velocity AP/HE : 699/735
HE-AP Penetration Belt/Deck, Accuracy (10km): 0.2-19.1/0.1-7.1,3.2%

Japan
Rotation: 3.83 deg/sec
Reload: 45.8 sec
RoF: 1.31 r/min
Muzzle Velocity AP/HE : 676/712
HE-AP Penetration Belt/Deck, Accuracy (10km): 0.2-18.6/0.1-6.9,3%

Rotation: A-H > Germany > USA > UK > Italy > Japan > Russia > France
Reload: Japan > Italy > UK > USA > Germany = A-H > Russia > France
RoF: Japan > Italy > UK > >USA > Germany = A-H > Russia > France
Muzzle Velocity/Base Penetration: France > Russia > Germany = A-H > USA > UK > Italy > Japan

Russia, France: Slow but hard hitter
Germany, A-H: Most average, but turrets can turn fastest
UK, USA: Relatively fast, relatively agile, but weaker base pen then Germany
Japan, Italy: Fast but weak hitter

Comparison between Modern Battleship I(BB), Modern Heavy Cruiser I(CA)
This should be enough to give you a general idea of what each country's strength and weakness is

Stat Explanation:
Hull Form: Affects acceleration, turning rate, engine weight, operational range, cruising speed
Stability: base accuracy, accuracy penalty from sea waves, accuracy bonus from cruising speed, accuracy penalty from maneuvering
Floatability: flooding chance, max speed penalty from flooding, flooding spread speed
Resistance: received gun damage, received torpedo damage, ricochet chance

Modern Battleship I
1. UK
BB
Displacement: 45,000~60,500t
Hull form: 97
Stabilty: 79
Floatability: 96
Resistance: 73
Max optimal speed: 32


2.France
BB
Displacement: 50,000~60,000t
Hull form: 117
Stabilty: 80
Floatability: 80
Resistance: 75
Max optimal speed: 32


3.Germany
BB
Displacement: 42,500~54,500t
Hull form: 115
Stabilty: 85
Floatability: 74
Resistance: 81
Max optimal speed: 32


4. USA
BB
Displacement: 47,500~57,500t
Hull form: 90
Stabilty: 85
Floatability: 80
Resistance: 79
Max optimal speed: 32


5.Russia
BB
Displacement: 45,000~69,000t
Hull form: 84
Stabilty: 75
Floatability: 65
Resistance: 76
Max optimal speed: 32


6. Italy
BB
Displacement: 55,000~65,000t
Hull form: 115
Stabilty: 75
Floatability: 90
Resistance: 80
Max optimal speed: 32


7.A-H
BB
Displacement: 51,000~81,000t
Hull form: 87
Stabilty: 80
Floatability: 78
Resistance: 102
Max optimal speed: 32


8. Japan
BB
Displacement: 60,000~90,000t
Hull form: 80
Stabilty: 85
Floatability: 80
Resistance: 89.5
Max optimal speed: 27.5

Battleship Rankings
Hull form: France > Germany = Italy > UK > USA > A-H > Russia > Japan
Stability: Germany = Usa = Japan >A-H = France > UK > Russia = Italy
Floatability: UK > Italy > USA = France = Japan > A-H > Germany > Russia
Resistance: A-H > Japan > Germany > Italy > USA > Russia > France > UK
Max optimal speed: Everyone > Japan

Fastest, most agile ships: France, Germany
Best long range platform: Germany, USA, Japan
Ship can take some flooding: UK, Italy
Ship can take some hits: A-H, Japan
Why my ship so slow: Japan



Modern Heavy Cruiser I
1. UK
CA
Displacement: 11,000~14,500t
Hull form: 110
Stability: 70
Floatability: 70
Resistance: 66
Max optimal speed: 33.1


2.France
CA
Displacement: 10,000~13,500t
Hull form: 119
Stability: 66
Floatability: 70
Resistance: 61
Max optimal speed: 33.5


3.Germany
CA
Displacement: 11,900~14,900t
Hull form: 101
Stability: 70
Floatability: 69
Resistance: 75
Max optimal speed: 32.5

4. USA
CA
Displacement: 11,000~14,500t
Hull form: 114
Stability: 65
Floatability: 65
Resistance: 66
Max optimal speed: 34.6

5.Russia
CA
Displacement: 9,500~12,500t
Hull form: 124
Stability: 62
Floatability: 70
Resistance: 57
Max optimal speed: 34.5

6. Italy
CA
Displacement: 9,500~12,500t
Hull form: 124
Stability: 62
Floatability: 70
Resistance: 57
Max optimal speed: 34.5

7.A-H
CA
Displacement: 11,900~14,900t
Hull form: 101
Stability: 70
Floatability: 69
Resistance: 75
Max optimal speed: 32.5

8. Japan
CA
Displacement: 11,700~14,700t
Hull form: 112
Stability: 63
Floatability: 64
Resistance: 64
Max optimal speed: 35.8

Hull form: Russia = Italy > France > USA > Japan > UK > Germany = A-H
Stability: A-H = Germany = UK > France = USA > Japan > Italy > Russia
Floatability: UK = France = Russia = Italy > A-H = Germany > USA > Japan
Resistance: Germany = A-H > USA = UK > Japan > France > Russia = Italy
Optimal Speed: Japan > USA > Italy = Russia > France > UK > Germany = A-H

Agile cruisers: Russia, Italy
Good fire support: A-H, Germany, UK
Doesn't slow down as much: UK, France, Russia, Italy
Good for screening: Germany, A-H
Cruiser go fast: Japan