I would say that by using your own ears rather than just blindly following something on tab is a much better way to learn.
Like I said you learn not just the song, but also train your ears.
Train your ears in the sense that your perception of musical intervals (distance or more rather relationship between 2 notes) would be much better than the guy who just plain reads tabs. This is even more effective when it comes to chords and not just leads. Leads are probably the easiest to hear, single note type lines, but think about how it is when you're hearing chords when 3 or more notes are played at the same time.