Same as me really, he's the best ever from what I've seen, and I cant imagine a better footballer.
Cross generational is so hard because the pitches were different, the conditioning, even the boots were and the balls were so the flight of the ball weight of passes etc were. We'll never know I guess.
The problem is that there is no comparison.
It's sometimes a hard concept to wrap your head around, but the reality is that in professional sports, in the 40's 50's 60's and even into the 70's these guys were amateurs by todays standards. The level of nutrition, conditioning, training was virtually non-existent by the standards of today.
Guys were competing more on their raw natural talent than they were building on natural talent the way professional athletes today do. Just look at sprinting for example, in the 1950's the fastest men in the world would be beat by elite HIGH SCHOOLERS today.
Now, you can say "well what if Pele grew up in the modern game? How good would he be then?" That's a question you can't and shouldn't even speculate on. I say this because, we don't know how Pele would adapt to a system where guys are gym rats, turning their dad bods into athletic machines. The old saying "Hard work beats talent when talent refuses to work hard" is applicable here. In regards to Pele, we don't know how hard he would work in the modern game. I look at old pictures of footballers from that generation and I laugh. There is Pele, who looks like a physical specimen, and then there is everyone else, who looks like an average in shape Dad. I think that it would shock people if they knew how frequently the most talented athletes of any generation don't pan out because of that saying. They grow up the best at everything in their neck of the woods. They never have to try, and then they coast on their raw talent. Eventually they hit a level where everyone is competitive with them on natural talent, but all that is left are the guys who work their asses off, on and off the playing field.
Professional sports currently have two clearly defined eras. The olden days, and the modern era, and the modern era really begins in the late 70's early 80's depending on the sport. It's fair to compare Maradona to Messi, it is not fair to compare Pele to Messi.
In this light, the current generation of elite players are the ones who should be considered as the GOAT, because the level of play, standard of play, and level of competition is always moving upwards and onwards. Pele is the greatest of his era, no doubt, but his era wouldn't be competitive with todays.
The TLDR of this is, you can't just say "what if so and so from 70 years ago grew up today", because there is a lot more to being an elite footballer today, than just being a natural god tier talent. The most important thing is work ethic layered on top of talent and you don't know how the legends of 70 years ago would adapt to a game where their natural talent wasn't enough. Some would layer that work ethic on top, and some wouldn't we don't know which would and wouldn't. Keep the pre-modern game separate from the modern game. Let Pele reign in his era, and let Maradona and Messi battle it out in the modern game as the current GOAT contenders.