Edward is still fine (among the family the ‘abdicator’ was always known as ‘David’). Perhaps the greatest of them all was King Edward III. Henry is fine too (Prince Harry) but I fully take your point about the others.
Although, at the moment, James is riding quite high with the bookmakers.
Solid old George might fit the bill. ‘Albert’ is apparently Prince Charles’s favourite, but could there be a ‘Philip’ surprise?
I’m going with George. So it’s decided.
(Somebody had to end the speculation.)