If you want to rewatch BW, go right on ahead. Just don't force yourself to do so.
And besides, as pointed out above by a few users, BW's definitely a good show compared to SM, since at least it actually stuck to the core formula of what the show is supposed to be about, actually LET Ash pursue his goal of becoming a Pok?mon Master, instead of forcing Ash out of his goal to basically go to school, which, BTW, it's been made very clear since School of Hard Knocks that Ash didn't even NEED to go to school to be a good trainer, which literally contradicts that bit. Now, if Ash actually WINS the Alola league (and based on what that Professor said in Episode 43, there WILL be an Alola league soon), then maybe things will be different.