Ok here is my request:
Can we have vertex groups sorted in alphabetical order? It would ease groups selection, and this is quite important when you rig a character.
However I've noticed we have this feature in the Outliner.
They are sorted in alphabetical order, but not starting left/top but left/bottom . Looks confusing but you get used to it very quickly... it would be better if it was starting left/top, but I don't mind.