It's hard for me to compare the combat between the two, they're both janky in their own ways, sometimes that's fun, sometimes frustrating. The story, I can't really comment on BG3's story while stewing in it's expositionary phase for these long years. I think the highs of Baldur's Gate II will be higher, the lows lower; Baldur's Gate 3 will be more consistent, but less interesting. That isn't a bad thing because there will likely be so much more of BG3 that maintaining consistency compared to Baldur's Gate II will be a feat itself.
