If what dman said is true, then that shows Paul's at least a halfway decent strategist. Why the writers have to ruin that by forcing all these powerhouse Pokemon on him is beyond me. Still, if it comes down to strategy, Ash has proven time and again that he has the right head for strategy that has helped his weaker Pokemon gain an edge over stronger opponents, so I'd give this battle to Ash. Actually, I'd give it to him anyway, since a loss would prompt Paul to bring out much stronger reserves for the League. Aggron, anybody?
Pokemon Y Friend Code: 3282-3535-2249
Friend Safari: Pansage, Petilil, Gogoat
As of now, my focus is on Safaris with starters (barring Wartortle and Quilladin), but give me your Safari anyway. Chances are I'll find something interesting.