Alright, so looking at the official formats I can see that there is no official supported 6v6 Battle for X & Y, which sucks. I know that Smogon's standard is lvl 100, but I see a lot of players that play WiFi battles and upload to YouTube use Smogon's rules and tiers but they still use lvl 50 format. Is this the most common practice, or do people in the Smogon WiFi community usually use lvl 100?
I'm mainly asking these questions because I don't want to waste my time EV training for lvl 100 when I'm going to just wind up playing lvl 50 battles most of the time, or vice versa.
lv50 is the standard for the cart due to convenience + officially being supported by Nintendo. lv100 is the default for simulators.