Which mons do you have the most of?

Vaporeons (9) Rhydons (4) and Arcanines (5) for gym usage.

Lesser but still important Jolteon (3) and Flareon (3)

Also I have gone through at least 14 Arcanines and transferred most, same for eeveelutions.

Funny that you ask. I've got 16 of these guys. And I got 205 candy. I reckon I'll have more thanks to this event.

10 Lapras
7 Vaporeon
6 Exeggutors
5 Rhydons
I only have the Lapras because I refuse to transfer until there's double XP

Dragonites lol

Because I prestige a lot, I have multiple mons at many CPs
17 Ivysaur (most have Solar Beam)
17 Wigglytuff
11 parasect (all with Solar Beam)
15 Exeggutor (all with Solar Beam)
10 Tangela (most with Solar Beam)
14 Pinsir
19 Gyardos
20 Vaporeon (all with Hydro Pump)
etc.

Though, I have a ton of Eevee's evolutions form, but just "not enough". I eventually have to attack Gyaradoses with Charge Beam Clefables!

Vaporeon: 14, 13 in the main squad, 4 defense, 9 offense

4 Vapes, 3 jolts, 3 flares, 3 exegg, 2 gyar, and 5 wigglytuff, 3 Ursaring

Around 9 Magnetons, i could've more of them but with lower levels.

i have a heap of gyrados (every combination of move except DT/O) but only 2 leveled and eevolutions at various cp's

it isn't too antisocial to throw a 2500cp vape in as temporary defender or in a pinch attacker it helps smooth potion flow.

DRATINI
I keep ~30 Dratini I catch in the wild in order to get double candies by sending them to the professor WHEN there is a double candy event (so I gained ~30 candies in Halloween and Valentine's)

Well if you don't want to count the 105 Pidgies I'm saving for the next evolve spree, I guess it'd be:

30 Pikachus (with a variety of special hats)
13 Vaporeons
10 Flareons
8 Jolteons
(And a special shoutout to my 3 100% IV Tauroses)

18 Vaporeon (33 evolved total)
10 Jolteon (31 evolved)
9 Flareon (27 evolved)

12 Igglybuff (maybe I should toss some...)

This thread makes me realise that I have hoarding issues.

15 Exeggutors
15 Golem
12 Alakazam

I think the biggest is Kangaskhan at 27.

I have 35 Eevee waiting for evolution. 75 Vaporeon, 48 Jolteon and 51 Flareon. Seen 1833 Eevee caught 1700. Yeah, I have an Eevee addiction.

Machamp for sure, have 5 double fighting moves ones between gen ii evolves and legacy moves:

HA!

Currently keeping:
24 Exeggutors
18 Kinglers (need to delete some more)
18 Starmies (kind of collecting hidden powers)
11 Vaporeons
11 Arcanines
11 Golducks
10 Rydons
10 Pinsirs
9 Wigglytuffs
9 Poliwraths
9 Tentacruels
and 3-7 of pretty much everything else

And that's not including the 3-400 already on death row! (9 Kinglers, 25 Raticates etc)

I might have a hoarding problem...

Lev 36 - grinding since the start

0 Tyranitar :(
0 Piloswine :(
0 Ampharos :(
(1st Mareep a few days ago!)

Some how I got this in a desert biome also I transfered one that I caught a long time ago I wish I did not it was a decent prestiger.

This thread really makes me wonder how people manage the space. I wonder when Niantic will increase storage.

10 eggs, they are very usefull in general from lvl20 on
13 vapes, also very usefull in high levels(25+), even with low iv
11 snorlax, i just can't trasfer them
20 dragonites also don't want the professor to have them
12 Heracross, i keep any 1400+ with at least one fighting move
honorable mentions to arcanine, magneton and rydom

Snorlax 19
Vaporeons 13
Joltean 14
Flareon 15
Pinsir 20
Starmie 16
Tangela 17
Rhydon 11
Pidgeot 10
Granbull 13
Ditto 14
Eggxec 11
10+ of sandslash, venomoth, arbok,

24 Lapras (can not delete them :-), though I deleted the one I caught with help of maps last autumn)
21 Gyarados
18 Vaporeon
14 Snorlax
14 Dragonite
12 Flareon
11 Jolteon
11 Starmie
11 Electrabuzz
11 Stantler (Why?)

My army

Charizard, no question. 18 of them.

Pikachu 25
Vaporeon 17
Ditto 16
Jolteon 13
Flareon 11

Evolved types I have more than 6 of:
9 Beedrills
8 Cloysters
16 Eevees (prepping for an evolving session)
9 Fearows (Not sure why though, all high CP...)
13 Flareons
9 Gengars (I love Gengar, what can say?)
7 Golducks
7 Hypnos
12 Jolteons (VERY useful!)
10 Kinglers
7 Magmars
14 Pigeots (al high CP, high IV)
12 Raticates (I 'cultivate' these things to take over & occupy cheese gyms in WI...).
15 Scythers
11 Seadras
9 Slowbros
7 Snorlaxs
10 Tauros
19 Vaporeons (Gotta 'thin the herd'...)