Honestly the whole thing hinges on one critical difference of opinion:
Can Kyrie Irving get the better of Jrue Holiday?
That's what this thing hinges on? Well, then, this should be an easy vote for people.
The only empirical evidence we have regarding Irving and Holiday heavily favors holiday
Here's the "empirical evidence" you're overlooking:
Player A: 18.5 points, 5.4 assists, 3.7 rebounds, 46.9% FG%, 39.9% 3PT%, .517 eFG%, .566 TS%
Player B: 13.5 points, 4.5 assists, 3.3 rebounds, 43.2% FG%, 38.0% 3PT%, .471 eFG%, .496 TS%
Also, note that Player A led the entire league in clutch scoring, while Player B seriously regressed from his sophomore season in terms of points, assists, rebounds, FG%, eFG%, etc.
"Empirical" doesn't mean you get to disregard a 50+ game sample size, just because it's inconvenient for you.