[Gimli]

"Weapon finesse can be made to apply to any weapon at least 1 size category smaller than you. It can also be used on neat weapons with that as a special ability (like the spiked chain if I remember right, which I may not)."

Maybe with a Mod I'm not aware of, but in IWD II, so far as I know, weapon finesse applies only to short blades.

"Thats why its pretty popular with single classed monks with lower strength scores. You can still hit, and your damage is already higher than anybody elses. A monk with 20 dex and Weapon Finesse is very powerful. Keep boosting dex too."

It would be more popular if it actually worked without modifying the game; as it comes, weapon finesse in IWD II does not apply to unarmed combat. And I wouldn't say a low Str Monk, even at high levels, has damage "higher than anybody elses". They get a d20 as base damage - but with a low Str, they get no bonus to damage; their criticals only do 2x damage and only happen on a 20; they don't get any added damage a magic weapon would grant. Also they can't take weapon focus or specialization with fists.

A character with maxed out Str and a magic 2-handed weapon does the most melee damage, by far - it's not even close.