Legsweeps deal additional dmg against knocked down opponents: 10x more dmg (so about 30dmg instead of 2-3, but 20 against jedi since they have dmg reduction, and maybe even less vs jedi who are holding block). Classes with Wook Strength level 2/3 will do an additional 1.2x/1.5x punching dmg on top of the above, and melee katas will then also do an additional 1.2x/1.5x dmg (but for melee katas the previous 2x dmg from above doesn't apply as far as i can see).

Classes with Wook Strength above level 0, as well as classes marked with the CFL_HEAVYMELEE flag in FA, deal 2x more punching dmg. Wooks during rage have unblockable punches, regardless of strength levels. Wooks during recovery time after using fury deal 0.5x punching dmg. Saber melee (all moves) is different from full melee and always does 2 dmg against other jedi, and 5 dmg against non-jedi. Melee legsweep does 2 to 3 dmg (i think). Normal ground melee kicks do around 5 dmg. Flying kicks (when jumping high enough as a jedi or more generally force jump) do 8 dmg. Some details straight from code but not comprehensive (there's more details with melee blocking, and surely more other details with katas especially that i haven't looked up):