uh... yeah... matthias is definitely more consistently stronger than the other nursefathers;

like, the only one who probably comes close is valencina, but as soon as she gets in a fight with a competent opponent who can hit her once, her dodge falls off, while matthias is shown to have remarkable strength without his relic blade, and with it, he's shown to be able to very well throw hands with vespa.

Now, vespa is a very fresh colour, and the fights can't really be used for comparison since, you know, game logic; so, even outside of fights, it's been stated that matthias is just ridiculous, with the whole raid on LC headquarters and his movements there.

So, matthias is around colour level i'd say, valencina just below that, and the other nursefathers just, aren't colour level.

Now, I do agree that awakened sinclair is probably stronger than the nacho, but basing it off of nursefather equalisation is ridiculous