Warspite is favored, while Bismarck's speed and slight range advantage offer the best chance of avoiding her modernized 15-inch battery.
Notes
Warspite should win this hypothetical fight, both on paper and in practice. Bismarck's greater speed and slightly longer gun range offer her the best chance of staying away from Warspite's battery. Warspite's 15-inch/42 guns had been modernized to extend their range as far as possible. The confident assessment ends with a joke about Warspite possessing historically demonstrated "plot armor".