Verified answer

lucario handsdown

machamps problem is his speed

lucario is pretty fast and packs alot of power

plus he can use special moves well

and cover his weaknesses better

his movset is vast

he is easier to get at flocassy ranch 3rd town on journey

a moveset like

dark pulse

stone edge

Close combat

Sword Dance

Lucario. Machamp, although good in younger generations, in no match for Lucarios stats and moves.

Lucario. He is stronger and faster. But if you want a good fighting type get a Heracross.