Does Josh Taylor now have a better resume than Calzaghe?

To date? No.

If Josh carries on as he has done to date, he'll probably be up there or beyond by the time he retires but it's not a guaranteed thing.
So many fighters struggle to come back from losses, especially if KO'd, that it's hard to predict just how far a fighter can/will go until you've seen them respond to a loses...
If they go unbeaten, having fought most of the serious competition, then great - but most either duck some (not Taylor so far) or they get beaten.

It remains to be seen whether Josh will retire unbeaten or how he'll respond if beaten, so for now it's fair to sum up by saying "we need to wait a bit longer to say"

 

The same can also be said about AJ, he has Zero wins over prime guys, all aged shot fighters AJ's only legit win is Parker but only because he had a belt.
There are alot of people that praise Calzaghe and his resume but when you look at it deeply it certainly isn't as impressive as it seems, I'm also saying thus a a big Calzaghe fan, as a young fan he was probably my favorite fighter.
Josh Taylor is P4P though and I think come the end of his career he could become ATG. JT is my favorite fighter atm.

 

Not yet.

But he could well get there.

 

kessler vs taylor would have been a fun fight

 

Yeah.

 

Kessler was not just a limited puncher :/

 

Ofc was not. He in some fights was more precise than prime Usyk or prime Loma fe and not only these boxers.
He did had his flaws but precision was not his flaw, this was his asset.