LOL....it's so funny seeing people talking about languages and pronunciations.
I think Spanish is just like another languages, in different parts it has some variations as in expressions or accents (by example: in México you can hear about "chavas", in Argentina about "nenas, pibas", in Chile about "pololas", in Venezuela maybe about "catiras", in Ecuador about "peladas", etc, etc....and we all will be refering in one way or another to "girls").
Anyway, apart from that, it's not a big deal, we all can understand what we're trying to say!
¡Viva el español! Je je.