I'd say playing Bayonetta 1 first is better for making the prologue of Bayo 2 be that much more impactful. If you start right from Bayo 2, you won't know or care much for the characters and what happens won't be quite as VaderNOOOOOOO.gif. Not that the story is all that important or the characters super well written, but I still like both Bayo & Jeanne as characters & their relationship and what they do to Jeanne at the prologue of Bayo 2 is just ;__;
I just can't do it, Bayonetta is one of my favorite games, but I just can't stand the cutscenes in this game. I started skipping them after a few hours of my first playthrough, and obviously all subsequent replays.
I'll give Bayo 2 a chance, but I'm fairly sure I'll start skipping them within an hour or so, too.
I've beat Bayonetta 3 times, but it's been at least 3 years since the last time, so I'll probably start with Bayo 1, just because.