Didn't read full post just looked at bottom positive/negative thing.
You can do 6 vs. 6. I have done plenty of 6 vs. 6 battles online. So what is that negative? Or what do you mean by random?
THe difficulty setting is something that you do yourself. If you grind your characters they are too strong and its easy. If you want it to be harder just switch pokemon. Don't use super effective pokemon, ect. I mean what would you expect if you went into a grass gym with a fire pokemon. Obviously you will own. Use something that isn't super effective or if you realy want a challenge use something that grass is super effective against. Or just use fire pokemon that are lower levels.
I'm fine with monster quantity. 70 is plenty and add in mega's as well. Can't really forget there are like 700 to begin with. That's a lot of choice.
Finally have to agree partially on no 3d effect. I dont' mind no 3d for overworld, actually thought that is good idea, not needed. I am dissapointed though on no 3d for any battles larger than 1 vs. 1. Any doubles battle, tripple battle or hord battle are all in 2d.