It's actually quite easy, if you don't want me to bring up Seedorf, don't use metrics that would have him as one of the best player of his generation.
Well when people considered Pele and Maradona are the greatest, its not only that they are part of the team winning the WC, but also they won the WC as the best player. This is the metrics everyone use throughout the football history, such as Di Stefano, who was considered GOAT just before Pele time, as he won 5 CL as best player in the world. And of course, the same also applies to Ronaldo, winning 5 CL as the best player of the world too.
And for Ronaldo case, not only he won 5 CL as best player, he is now also all time top goalscorer at the top level. Like Pele from our childhood, this will be part of Ronaldo legacy in future.
May i remind you again, Seedorf doesn't fit into that at all, he is just part of the team winning 3 CL, but he is no way anywhere near the claim to be the best player at any point of his career.
But sure, there will be other metrics some people prefer to use, such as comparing their peak level performance base on their “eye test”, and disregard their stats and career. In such cases, L.Ronaldo will be among the top, and Maradona would probably be no.1 of all time, and maybe even Ronaldinho will be up there.
And of course, Messi would have strong claim under both metrics too.
If I rank GOAT strictly under first most popular metrics (achievement/legacy/objective based):
1. Pele (2-3 WC as best player, 1200+ goals at all levels)
2. Ronaldo (5 CL as best player, all time highest 770+ official goals at top level, 5 Ballon D’ors)
3. Messi (3-4 CL as best player, 6 Ballon D’ors)
4. Di Stefano (5 CL as best player)
5. Cruyff/Beckenbauer (3 CL as best player, 3 Ballon D’or. For Beckenbauer case - 1 WC as best player; for Cruyff case - best ever player in WC while not winning it)
5. Maradona (winning WC as best ever player)
If rank GOAT strictly under 2nd most popular metrics (eye test/ subjective based):
1. Maradona
2. L.Ronaldo
3. Messi
4. Cruyff/Best/Ronaldinho
5. Pele/Ronaldo/Zidane/Beckenbauer
And overall, if combine both metrics, my choice would be (half objective half subjective)
1. Pele
2. Messi
3. Ronaldo
4. Maradona
5. Cruyff/ Di Stefano