I HAVE A FEW COMPARISONS:
BB T7:

Max Distance:

    2241m(Germany)

vs 2410m(Janpan)

vs 2430m(England)

vs 2562m(America).

Damage:

    2x4 / 4160 = 33280(Germany)

vs 2x4 / 5535 = 44280(England)

vs 2x4 / 5855 = 46840(America)   

vs  2x6 / 4160 = 49920(Japan)

Durability/Speed:

    73235/24knot(Grmany)

vs 73235/25knot(Japan)

vs 73235/25knot(America)

vs 76897/27knot(England)

The worst always was the BB ship of Germany.

SIMILAR TO BB T8. THE MOST IMPORTANT ISSUE IS MAX DISTANCE. 2241 VS 2562, THAT IS VERY  FUNNY =))))))

Regards
Valkyries