I don't have any personal experience with it, but I think the Frank and K Tomes (Tome of Necromancy, Tome of Fiends, Dungeonomicon, Races of War) are pretty awesome. They basically went "fighters suck and casters
are crazygonuts, let's make everybody as crazygonuts as wizards." So the Monk can punch holes to another dimension, the Samurai can cut you in half 10
times before you realize they started moving, and the Barbarian is completely over-the-top RIP AND TEAR.
Also they looked at a bunch of other broken or weird stuff (wealth by level, the widespread existence of dungeons) and reworked it to make it actually make
sense.
are crazygonuts, let's make everybody as crazygonuts as wizards." So the Monk can punch holes to another dimension, the Samurai can cut you in half 10
times before you realize they started moving, and the Barbarian is completely over-the-top RIP AND TEAR.
Also they looked at a bunch of other broken or weird stuff (wealth by level, the widespread existence of dungeons) and reworked it to make it actually make
sense.