Baldur's Gate is 2 Edition rules of D&D and that's is only the case for 3th and 3.5th. (I haven't tried 4th)yea, you get a stat point every, er, 4 ? levels , i think
and yes, i think one tome per stat, not sure if 1 per stat per game
plus ofc , gauntlets of ogre strength etc
no, it's more like they adjusted the rules into an action gameplay. 2.5th never existed
Hands down then !to quote the wiki entry
In 1995, the core rulebooks were slightly revised and a series of Player's Option manuals were released as "optional core rulebooks". Although still referred to by TSR (and later Wizards of the Coast) as the 2nd edition, this revision is seen by some fans as a distinct edition of the game and is sometimes referred to as AD&D 2.5.