If its any consolation the RN seem to have lost the knack of coming up with good names as well. We've had Warspite, Battleaxe, now its HMS Duncan.....Duncan? Why name a ship after an unlamented ancient monarch who was murdered in his bed?
Appreciating that OneShot could be trolling, it's probably because the Ships' Names and Badges Committee named DUNCAN after Admiral Adam Duncan, 1st Viscount Duncan, the victor of the battle of Camperdown in October 1797, which is generally regarded as being one of the most significant naval actions in history.
That said, I always rather liked some of the names that were used for the immediate post war DARING Class, but have not been perpetuated with the Type 45s. These included names such as DUCHESS and DECOY, and indeed DIANA (the Huntress), given that the last name was probably discarded for PC reasons, whilst the orders for DEMON, DERVISH, DESIRE, DESPERATE, DISDAIN - and DRUID! - amongst others, were cancelled.
Jack