I don't think there is an absolute best. Everything is relative. Suppose somebody scores 100 out of 100 in a test. Is that supposed to be objectively good/best?

I don't think there is an absolute best. Everything is relative. Suppose somebody scores 100 out of 100 in a test. Is that supposed to be objectively good/best? When we say someone is the best in their field, all we mean is that they seem to do something much better than everybody else in that domain or they possess some special quality that not many others have it.