well, i dont actually see why vitor should be on this list. i mean, he won ufc 7, so it is good, but if u take old era with the modern all together, then royce must be placed as number one. bc other than that, vitor was extremely instable, he won the belt due to a cut, fought 3 times for the belt and was destoyed after brief sprints in the first rounds in all of them. the best part of his career was when he was juiced as fucl. ok, he has a name, but doesnt have a serious resume. thus, considering women, old and modern, i would classify like this:
1. royce (3 times champion, introduced to the world how real fights would be, never lost at his prime, several fights at the same time, all subs, no decisions)
2. nunes (2 division champion, considering the heaviest one, undefeated at her prime, levels above everyone not named valentina)
3. anderson - most title defenses against the better at the time, dominating fights, perfect fighting style
4. aldo - same reason as anderson
5. cyborg - won titles in the heaviest division, undefeated for years, defended most of the belts, levels above everyone not named amanda. would kill valentina
6. werdum - beat fedor and cain (2 that are in all goat talks), ufc champion
7. wand - pride run
8. machida - great legacy, won belt, fought for the belt in the division below
9. JDS - craziest hw run ever
10. shogun - pride 2006 / ufc gold, his resume at one night beats rda resume in several nights