listening to what Loctor Duke has done over the years from roughly 2006 till now, he has been way more consistent than Max Martin. I wouldn't be surprised if at some point Loctor Duke will have more #1's than Max Martin
From 2004 until they stopped working together in like late 2014 they had a ton of hits together but Max had 26 top 10's, out of which 7 went nr. 1 without any Dr. Luke involvement. After they stopped working together Max has gone on to have 16 further top 10 songs out of which 3 were nr. 1's.
Luke on the other hand had 13 top 10's with 3 reaching nr. 1 on his own during their time. After Max stopped working with him, he have had 2 top 10's, 1 nr. 1 in 5 years.
I would argue that saying Luke is more consistent is kind of odd. Of course taste is subjective and it's totally okay with liking his sound better, but in most listeners opinion, the charts and on an artist development standpoint and all that, Max has definitely been the way more consistent one.
And no there is zero point zero chances of Luke having more nr. 1's than Max. What are you talking about?