Vania vs harumi and why the ninja dating royalty is an issue

Don’t get me wrong I think both characters were influential in the show, but when you look at it from a nuance point of who is better, it’s clearly Vania, but that doesn’t equate to being a good partner, especially considering both women were in roles of leadership and before you say “Vania is nothing like Harumi because she chose to fight her father immediately” and "Cole deserves a 'win' in the romance department after being the single one for so long." I hear you but look at realistically...