Looking at the W/L column and tallying up ranked victories comparing their level of competition like
@NoBiasJustMMA just did are two separate things.
The former is just going to Wikipedia and seeing that Weidman is 14-5 and Jacare is 26-8 (1) which, ironically, is essentially the main point of the OP. Jacare has been fighting longer so he has more total victories under his belt.
The latter requires you to know the level of competition of all their opponents during that specific time frame, which takes actual research and knowledge. Under this heading Weidman has fought more ranked opponents, as well as beaten more ranked opponents, which means he's fought and beaten better competition. Which is logical when you were a four time champion..
I already explained why NoBias analysis was flawed and you didnt answered to none of that. I will rewrite it for you, even in bold, so the points dont go unnoticed again:
First of all, left Okami,
who was ranked #3, out of Jacare's top 10 wins.
Carmont was ranked as well iirc. So they would already be
even under that simple analysis. Not to mention wins over Lawler, Miller and first fight with Brunson are quality wins, not sure if they were ranked, under what especific rankings.
And the main flaw of that analysis, which you didnt even wanted to touch:
Just looking at the W/L column, having a great fight with Romero to a split decision that could have very well gone his way
count just as much (nothing at all) as getting KTFO by him, because both performances stand in the L column. Well, if you are perfectly ok with it, I respect but we just can't agree on this debate.
Once again, this is a more in-depth look at the level of competition between the two fighters:
Weidman has the better resume. He just does. You can argue the point if you want to, but there's an objective thought process to this methodology. It takes your own opinion out of the process completely, as well as being forced to adhere to historical evidence.
You pretend to present as an objective fact, the names that a bunch of editors (sherdog staff) considered to include in some particular rankings (I guess you are taking sherdog rankings as a reference) in some particular moment. Thats subjective by definition.
And again, here we go with the simple, newbie, analysis I was refering to. Maybe you can check the rankings and Munoz stands as a much more quality win than Tim Kennedy going by that source, but if you actually watched them both fight and you have knowledge and criteria....not hat much
Summarizing, its certainly arguable, but do not pretend to present "number of ranked wins (subjectively ranked by some particular site)" as objective facts.
To me, how those fight went, in the win,
or even in a loss by a judge decision, longevity or how they did when they actually fought each other may have more weight than your and NoBiasMMA criteria, but its my opinion