Like chalk and cheese they are two different things with different uses, sounds and suitabilities. There is really no right or wrong and I teach both styles on the guitar without prejudice to either style. Do what you feel comfortable with but, as Ned says, it is useful to know both techniques.

What does bother me is that some teachers seem to have strong preconceived ideas about what is right and wrong. I sometimes find in teaching that a good student (my best one is only 14 and I think she will be a big talent one day) often shows you a better way of playing something you've been doing yourself in a certain way for 40 years. I'm certainly not too proud to learn... even from someone so young!

Best regards,

mooman