Hybrids however are not balanced
Hybrid>Sword and board
Hybrid>range
Hybrid>2hander
If you want to try to balance hybrids, support the wpf requirements for weapons idea that's being tossed around by players these days. The reasoning behind it is that the top tier weapons would require specialist levels of wpf, and hybrids would be limited to the lower tiers of equipment. Say I'm a throwing/1hand/shield hybrid, 110 throwing, 120 1 hand. This means, even with 24 str and 8 pt, I could use neither the throwing lances, or a side sword. I'd be limited to say, heavy throwing axes/javs and a broad axe or Nordic champ tier sword. Now, if I'm really skilled, I can kill you consistently with even the low tier weapons, but I really think it'd bring some balance back to the game for the masses.
EDIT : Should have clarified, the wpf requirements are IN ADDITION to the current str/pd/pt requirements. Agi buffers get no special considerations
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