hi, what are the benefits of multible sets like 5x5 , 5x3 vs. one top set of (near) maximal reps like 531 original ?

trained 5x5 texas method some time ago and it was very good for my weakest lift (benchpress) for example . i would use it for 531 too , with 3-5 x 5 reps instead of one all out set on 5th week . so my volume is much higher with the heaviest weight and without failure .

so 5x5 = 25 reps vs. 12 reps on one all out set , which set up wins on get stronger ?