I actually really dislike the series before the voice change. Pre D&P Ash was horrible.
"Oh look, Gary's doing something, it must be bad. Wait, there's a tournament for it being held? And this person I just met has dreamt about winning it for years? I MUST ENTER AND WIN IT!"
"Hey Ash, how about we take a short detour to a one-time pokemon contest being held in a few days?" "BUT I DON'T WANNA WAIT FOR MY GYM BADGE!" "But the gym isn't going anywh-" "BUT I WANT MY BADGE NOOOOW"

So for me the new voices are the real ones, and it's wierd seeing the old movies.