Never let anyone else define you. Don't be a jerk just to be a jerk, but if you are expressing your true inner feelings and beliefs, or at least trying to express that inner child, and everyone gets pissed off about it, never NEVER apologize for it. Let them think what they want, let them define you in their narrow little minds while they suppress every last piece of them just to keep a friend that never liked them for themselves in the first place.
Probably give it to Vegeta. A tired SSJB KK Goku was able to challenge her; a fresh ASSJB whose implied equal to that Goku would do even more. Vegeta got more zenkais/power boosts over time as well... The power of Kefla or pretty much anyone previous became largely irrelevant by the ToP finals.