So, you're saying there are better climbers, just not pure enough?
No, sorry, english isn't my first language.
For me, Pantani is the best climber. Of course, Pogacar and Vingegaard can become better if they will keep delivering Plateau de Beille like performance.
Pantani became so mythical because he was more than "just" an amazing cyclist. Sometimes you get these guys that mix both insane talent and personalities like Senna, Rossi, Ali, etc. Pantani was something similar, at least in Italy. Cycling almost reached football like popularity, which was something never seen before for this sport.
Another thing that I feel many people don't remember is that Pantani was always the underdog. There were an insane amount of TT kms back in the 90s and Pantani was always forced to launch insane attacks, even 40-50km from the finish line. Then you have his incredible style while climbing, which was simply unbelievable.
Personally, i've never seen a stage like Mont Ventoux 2000 for example. Pantani was again not as his best and dropped from the leading group (with Lance, etc.), but instead of giving up he was able to come back during the Vantoux climb. And then he started attacking like there was no tomorrow despite the massive wind, with no teammates, against everyone, knowing that Armstrong was extremely strong. He dropped everyone outside Lance himself, which then tried everything to drop him (he gifted him the win though), but Pantani never gave up and went over his limit to keep up.
This is why people liked him so much.