dtgreene: If you do not have legacy XP enabled, you do, in fact, level up much faster than the original, with levels taking only half as much XP (until really high levels, with high level advanced casters being a complicated case).
There's some other changes that might be making the game easier:
* In the originals, there's a limit to how much XP you can get from one battle (it's something like 65,280). The remaster got rid of that limit, so encounters with large numbers of enemies can give you enormous amounts of XP. This becomes particularly apparent if you have legacy XP enabled and are farming that one Berserker fight.
* Monks use the BT3 damage tables for all 3 games. In BG1, this is massive overkill; you could easily kil enemies in one hit without this, so it only really affects BT2.
* You get spells from later games, and with the exception of Mind Blade, they tend to use the BT2 or BT3 versions. Healing spells, in particular, are the same as BT3 except that Restoration only costs 12 SP like in 1 and 2.
* Some bugs have been fixed.
As for the one hit kill, one hit kills, even of bosses, is normal. In BT1, all enemies have low HP; the most HP you'll see in an enemy is something like 270 (or, in classic versions, 255 because that's the most that will fit in a single byte). BT2 and BT3 give enemies more HP, particularly near the end; BT3 has enemies with over 10,000 HP! Even then, hunters and ambushing rogues can instantly kil, no matter how many HP the enemies hvae.
Also, the originals may not be as difficult as you remember.
* In BT1 DOS, enemy breath attacks are deadly, but enemies will have trouble hitting you physically until later in the castle.
* In BT1 Apple 2GS, enemy breath attacks are less dangerous (but you still need to be careful).
* In BT2 DOS (maybe Apple 2GS as well?), once you have good equipment, enemies are not going to be hitting you until the Grey Crypt, and are not going to hit you with spells at all once you reach a decent level.
* Bard's Tale 3 is more balanced in this regard (but avoid the DOS/Amiga versions; they're buggy).
You're awesome.
So I'm not imagining the quick level gaining. I think legacy mode is definitely more my thing. I think if I ran the original Amiga or DOS version it might not be as hard as I remember, but also because I was pretty young then. I think I'll be pulling out WinUAE soon. :)