So I've defeated the E4 and gotten most of the Dex. I still have a few Looker missions, some Mega Stones to find, and breeding Shinxes. Also, I don't really battle, because I suck. But to break up the monotony of running around with eggs, I've started a new walking tour through Kalos, from the beginning with a couple of starter level Pokemon (a 4IV shinx I bred and my Pokebank Celebi). I've put the rules to myself that I'll only add to my party what i catch along the way (trying to use pokemon I haven't used before) and only advancing from route to route as I the lowest level on my team exceeds the route average. When I make it to the Elite Four again, I'll do some heavy training with my new team in the Battle Chateau and take them on to establish a second team in my Hall of Fame. I could have just picked out ny combination from my PC of high powered Pokemon to make my second run, but this felt more fun and a more organically raised team that I'll be more attached too.
I'm currently bombing around Route 4 with Abranax (my Shinx), Celebi, Mothra (a Caterpie), Magikarp, and Budew.
How does everyone else play the game when the options get limited?