Eeeek! That’s SO difficult, because I can relate to each scout/soldier in some fashion.
(Plus the variations of the personality for each character from the respective medium [manga, anime, live-action.])
Moon would have to be my favorite, my close second is Jupiter & Mercury (sorry, had to put them together.) But honestly, don’t quote me on that - quote me on what I started off saying!!
I love them all and I can relate to them in SOME way, that’s why it’s extremely difficult to choose just one (or two.)