So, who will be the first pokemon you deep into a gym?

How will he be maxed out upon returning? I thought mons could only loose CP, not gain it while in gym?
My first, or first three at that will be my Snorlax. There all have decent IVs (78%-93%), and great defensive movesets.

For gyms that are walkable I'll put in high cp hard to prestige mons, ice shard lapras, bs snorlax and blissey. All safe. Not sure what to do with the ones I can't feed every day. Might try mons like air slash/sky attack skarmory already at level 30 (fairly low cp) until I know what is worth powering up and how often I might need to feed.

I'll most likely put Crabcakes (Kingler) since he tends to defend somewhat well. Typhlosion would be my 2nd choice in case someone there already added a Vaporeon or something.

But I might put a Magikarp in an empty gym for the lulz, if I find one.

Dark Pulse performs better on gym defense.

Anyways, easily countered by Machamps.

Great question! The only one that's mandatory is my Blissey named Belle has to go back to Bell Road Park (which I walk by daily with dog - I'll feed her often!)

I have one blissey and the first open slot I see will immediately be occupied by my blissey.
I'm then going to use my Snorlax.

if those spots are already taken, I'm going to go to my c/p eggy and c/p slobro or my poliwrath.
Heck I'll probably be dropping the royal, mr and mrs nido.

Confusion/Psychic Slowbro

I am very excited to use this guy again. I spent 450km walking Lapras before the nerf, so my efforts were not in vain.

The first will be a 1400 umbreon, after that maybe a slowbro/king.

This guy cause why not.

My E/SoB Typhlosion, to have a nasty surprise to the water/ground/rock attacker people will put against him.