Well the reach that can come with height can be brutal..
Honestly Id prob be more worried about the overly buff guy, as typically those guys are roided the hell up, and roid rage can flip on/off as swift as a light switch.
Height defiantly... I'd rather fight a 5 foot buff guy than someone that's 7 foot tall.
height...even short buff guys wish they were tall
height
Lets say you are in the mall and you either see a guy who is around 5'8" and is buff/muscular or a Average muscle built guy who is 6'2"+ who would you intimidate you more?
And they both weigh around 190-200 pounds and they both know how to fight.