Besides Juggernauts what "roles" do other champions fulfill?

The main purpose of this post is an inquiry as to what terms other members of the League community think should be used when referring to champions that fulfill the same play space.

Below is a list of every champion currently available. I labeled each with at least one playstyle with terms I created. Below the champions is a list of the terms I used and to what they refer. This list is by no means correct and nor could it be. It is an opinion that I'd love to hear feedback on it. Let's get to it.

Champions - Classification(s)

Aatrox - Duelist Ahri - Kitest Akali - Phaser Alistar - Disrupter Amumu - Lockdown Anivia - Controller Annie - Caster Ashe - Controller Azir - Controller Bard - Manipulator Blitzcrank - Lockdown Brand - Caster Braum - Protector Caitlyn - Kitest Cassiopeia - Caster Cho'Gath - Disruptor Corki - Kitest Darius - Juggernaut Diana - Phaser/Duelist Dr. Mundo - Juggernaut Draven - Kitest Ekko - Phaser Elise - Brawler Evelynn - Duelist/Kitest Ezreal - Kitest Fiddlesticks - Duelist Fiora - Duelist Fizz - Phaser Galio - Manipulator Gangplank - Brawler Garen - Juggernaut Gnar - Kitest/Disrupter Gragas - Disrupter Graves - Caster Hecarim - Brawler Heimerdinger - Controller Irelia - Brawler Janna - Protector/Disruptor Jarvan IV - Lockdown/Brawler Jax - Brawler Jayce - Caster Jinx - Controller Kalista - Kitest Karma - Manipulator/Caster Karthus - Caster Kassadin - Phaser Katarina - Phaser Kayle - Duelist Kennen - Caster Kha'Zix - Phaser Kog'Maw - Caster LeBlanc - Phaser Lee Sin - Brawler/Duelist Leona - Lockdown Lissandra - Lockdown/Caster Lucian - Kitest Lulu - Protector Lux - Caster Malphite - Disrupter Malzahar - Controller Maokai - Brawler Master Yi - Duelist Miss Fortune - Caster Mordekaiser - Juggernaut Morgana - Lockdown Nami - Disruptor Nasus - Juggernaut Nautilus - Lockdown Nidalee - Phaser Nocturne - Duelist Nunu - Juggernaut? Olaf - Juggernaut Orianna - Manipulator Pantheon - Duelist Poppy - Brawler Quinn - Caster/Phaser Rammus - Lockdown/Brawler Rek'Sai - Brawler Renekton - Brawler Rengar - Brawler/Duelist Riven - Duelist/Brawler Rumble - Controller Ryze - Caster/Juggernaut Sejuani - Disruptor Shaco - Phaser Shen - Protector Shyvana - Juggernaut Singed - Controller Sion - Disruptor/Juggernaut Sivir - Kitest/Manipulator Skarner - Juggernaut/Lockdown Sona - Protector Soraka - Protector Swain - Juggernaut Syndra - Caster Tahm Kench - Controller Talon - Phaser Taric - Protector Teemo - Kitest Thresh - Controller Tristana - Kitest Trundle - Juggernaut Tryndamere - Duelist Twisted Fate - Caster/Kitest Twitch - Duelist Udyr - Juggernaut Urgot - Caster Varus - Caster Vayne - Kitest Veigar - Caster Vel'Koz - Caster Vi - Brawler Viktor - Caster Vladimir - Juggernaut Volibear - Juggernaut Warwick - Brawler Wukong - Brawler Xerath - Caster Xin Zhao - Brawler Yasuo - Phaser/Duelist Yorick - Juggernaut Zac - Disruptor Zed - Phaser Ziggs - Caster Zilean - Protector Zyra - Controller

Definitions:

Kitest - On the move, casting abilities, and doing damage while staying fairly mobile, a kitest thrives on the outside of the fight. 
Duelist - Duelists tend to stay in the heat of battle dealing damage with moderate mobility and means to mitigate damage while staying otherwise fairly easy to kill with minimal lockdown.
Brawler - A bit of everything packed into one aggressive fireball, brawlers often have a mix of the ability to get to their target, the cc to create some disruption, some damage mitigation, the damage to compliment, and/or the tankiness to deal a couple rounds of abilities all while in the midst of the enemy team.
Caster - A mix of damage and utility in low cooldown abilities paired with limited mobility and a slightly less-than-average health pool are all a caster needs to be viable.
Protector - A protector does just that (and a little bit more). A huge amount of a protector's power is meant to mitigate damage and/or cc their team members might take so their team can deal more damages.
Juggernaut - Juggernauts with their limited mobility and general beefiness may have trouble getting to their target but can deal hefty damage upon reaching them.
Phaser - While extended battles are not their strong suit, they have the tools to weave in and out as needed. Phasers are characterized by high mobility, high damage, high skill cap, high playmaking potential.
Controller - Positioning is key with the controllers. With tools to zone and deal nasty damage in those zones a controller dictates where the enemy is allowed to go.
Disrupter - According to disrupters hard cc and disables are the name of the game. What the disrupters lack in damage is made up through abilities powerful enough to make the enemy reconsider their life choices.
Manipulator - A manipulator is great at changing the state of the game. While disrupters may be very teamfight oriented a manipulator makes decisions that affect both the enemy and allies.
Lockdown - With the ability to find a single enemy player out of position and hold them still until their next sh*t (which shouldn't be too long after being targeted by the lockdown) these characters can turn a fair 5v5 into a 9v1 after the enemy team turns against themselves for getting out of position.

I'd love to hear what terms should have been used, which champions fulfill a different classification other than the one listed, and how helpful a classification like this can be. Feel free to tell me what aspects were wrong but explain why.

P.S. I felt this was the best board on which to place this post. Don't hate me. ;(