Out of curiosity, having seen many XY playthrough teams over the years-- what is the composition of your team? Did you have more Gen 6 Pokemon over non-Gen 6 ones or vice-versa?
And by Gen 6 Pokemon = The 72 new Pokemon introduced from Chespin to Volcanion, not including Mega Evolutions as opposed to non-Generation 6 'mons ("nones")
On my end, I actually had a 4:2 distribution on my team with four Gen 6 'mons (Greninja as my starter, Heliolisk, Sylveon, Noivern) and two non-Gen 6 ones, but they were Megas (Event Blaziken and Sycamore's Venusaur). I see a lot of teams with only their starter as their Gen 6 rep, but I guess it still makes sense with the Pokedex and distribution of Kalos itself. Hope to see more Gen 6 rep on PLZA, though!