>>38479308BW have great pacing because shit is always happening.
I had to drop B2W2 a bunch because once you get to the sewers the pacing suffers, nothing happens until you get to Opelucid. I feel like they took criticisms about muh cutscenes when they weren't even that big an issue and this hurt the pacing, it was boring and I was just waiting for something new to happen but it didn't happen until the very fucking end. There was nothing happening to keep me invested the whole way through. The lost game is great sure, but I just rushed through the main game to get there, where with BW I didn't want the main game to end, I took my time and took everything I could in.
Musicals are shit though, PokeStar is kino.
