It's interesting to note that Roy Chadwick, the designer of the Avro Manchester and Lancaster bombers of WW2, headed up the design-team at Avro tasked with the creation of a nuclear bomber for the RAF. Unfortunately, he was killed in an aircraft crash in 1947. There was also, at least for a short time, a project to produce a civilian version of the Vulcan for the trans-Atlantic run, but this came to nothing.
In my humble opinion, the Vulcan is still outstanding because it is different. It is a delta configuration instead of the almost-universal straight or swept wing plus horizontal stabiliser configuration of aircraft since the dawn of aviation. Even though it wasn't designed with such a thing in mind, it presented a much weaker radar image than say a B-52, long before the concept of 'stealth' aircraft.
Only about 135 Vulcans of all types were manufactured, compared to approximately 760 Boeing B-52's, which entered service at about the same time. Some B-52's are still flying, including a very few from the original production-batch of 1952-3. I once read that these original bombers could still be flying in 2050, in which case they could be a century old! Weird!
G