General Grievous would win.1.General Grievous could get out his 4 lightsabers.2.While hes clashing with 2 lightsabers against Qui-Gonns lightsaber,Grievous would get his other 2 sabers out and stab Qui-Gonn while Qui-Gonn is clashing with Grievous.(clashing means when 1 saber is pushing against another saber,works with 2 sabers as well).