2. Good plot (I'm only in Chapter 1 tho), and good balance (no level 5 red dragons... so far)
The stats bloat on enemies gets ridiculous in later chapters imo. My impression is that the difficulty is "balanced" around a merged angel, who gets equally ridiculous offensive spells. I'd rather BG3 doesn't go in that direction.
The stat bloat is the the problem that D&D 5E was designed to solve. I am not 100% confident in Larian, but I don't think stat bloat is the mistake that they are likely to make under the 5e system, even if they larianize many of the rules.