But the best overall? I guess you are a really young person. I can think of at least a few national teams from the 70s up to mid 80s that were far more legendary than this spanish generation. Even teams that hadnt won a WC but were far better than this team. The 74-78 dutch team being an example of that.
Was this spanish team one of the greatest? maybe so. But really doubt they would made the Top 5.