Well, it's the five worst tanks of all time that are in the UK Tank Museum. Still, there are some very unexpected entries of the list. But they do show their work, and I can't really argue with their criteria - unreliability, obsolescence on delivery, and an unwillingness by the design committee to prioritize features are all a pretty good way to kill a design.
Of course, next week is the tenth anniversary of when I posted about the German A7V and why the British and (especially) the French tanks were clearly superior. Dwight's video adds depth to that.
And this is a good time to ask whether you read Dwight every day. I mean, heck - I've linked to him twice in two days. Are you making me do all your work for you or what?