for Critical based Weaponskills its weighing 3STR/2DEX Vs 10 attack, and for WS with no Crit/Dex Mod you're looking at 3STR vs 10 Attack.
Now, For RR/Rampage/Drakesbane/etc you're better off sticking with Heca, since they have STR mods and the DEX will help Crits (since you'll be stacking it and they have a Crit mod*).
for KJ, these -may- win, depending on your current Attack and what you're fighting, but then again... with the Gigas-style armlets.
I can't speak for DRK/SAM weaponskills as i have neither and don't know their other options...