Mic work/promos
6 - unintelligible for the most part, you couldn't teach what he did in a promo class, but it got over, and that's the whole point of it.
Personality/gimmicks
10 - one of the GOAT characters/persona in wrestling history and he LIVED IT every single day.
Ring work (along with some of your favorite matches/feuds)
7 - don't trip on the number... he's not a 7 as a technical wrestler or anything, obviously his ring skills were very limited, but for the time period and what he was asked to do, he was just fine. His charisma carried him. You didn't need him out there wrestling an hour broadway, that wasn't his job. He has two certified Wrestlemania blassics which is more than say for a lot of guys in the biz.
OVERALL: 8 just based off the strength of the character and charisma. He wasn't the total package, but he had enough of it to be one of the biggest stars ever. There will never be another Ultimate Warrior