That is another thing I like about. We haven't changed it in our current campaign, but might try it in our next.
I actually did a little study of monsters, size, strength, and damage and came up with the following rule of thumb I use to design monsters (with some exceptions of course):
Size | Min. Strength | base damage |
---|
Medium | NA | 1x (weapon), ex: 1d8 |
Large | 19 | 1x (weapon), ex: 2d8 |
Huge | 22 | 3x (weapon), ex: 3d8 |
Gargantuan | 25 | 4x (weapon), ex: 4d8 |
Colossal | 28 | 5x (weapon), ex. 5d8 |
Also, I would allow a PC with gauntlets of ogre power to do 2d8 + mod longsword damage on a hit.