rgoodbb
Adventurer
My solution to the weapon table issue was to remove it. Not the issue, the weapon table.
The idea I floated was having the damage a character does with their weapon be equal to the character's Hit Die. So no matter what weapon a barbarian wields, it does 1d12 damage. No matter what weapon a sorcerer wields, it does 1d6 damage. Etc.
This allows more interesting character visuals (a knife-wielding fighter, for example) and makes them all viable. A barbarian or fighter just knows how to hurt something better than a wizard does, regardless of the tool they are using.
Caveat: my campaigns do not use multiclassing, but I don't see why it would cause an issue to use the highest Hit Die of your classes. Also, nobody in my campaigns ever took stuff like Polearm Master so I can't speak for issues those feats might cause.
But the idea was very popular in my groups and worked well for us.
I like this idea, but my electro-katana-vorpal-spiked-chain wielding sorcerer certainly does not!