For the current campaign I’m planning (Greyhawk with shades of Lovecraft and Warhammer Fantasy Roleplay) I’m thinking of using the following. The idea is to make weapon choice more of a factor amongst characters. Needless to say I’d appreciate any thoughts or feedback you may have.
The following bonuses affect only those classes eligible for the weapons described.
Shield: +1 to AC. May use Shields Shall Be Splintered rule.
One-handed weapon only: +1 to hit
Two-weapon Fighting: +1 to hit, +1 AC, Roll both damage dice and divide by two. Off-handed weapons must deal d6 damage or lower.
Lances and spears: May be set against a charge. If a charging enemy has shorter reach roll to hit before they do. If their reach is equal or better roll simultaneously. A successful hit inflicts double damage.
Great Weapon: Maximum damage on a 19-20 if a successful hit is scored.