Rate a champion with this system, then explain what you would change to buff or nerf that champion!
Okay Summoners - Using this system, rate a champion that you think is busted, and then explain what you would change to bring him or her more in line with the other champions on the rift. This keeps things simple and elegant. Rather than saying 'Id nerf Lee Sins Q damage by XXX' ... you can more easily say 'lets take Lee's damage from a 3 down to a 2.' or something like that.
Damage Output (1 to 10) Essentially the relative damage output the champion has. Extremely-burst oriented champions, like assassins would be the highest rated.
Anti-Damage Output (1 to 10) Heals, shielding, anything that stops someone from placing damage on a target should go here.
Crowd Control (1 to 10) Pretty obvious, but anything that disables or slows a champion in some way.
Survivability (1 to 10) The relative tankiness of a given champion. Anyone who is difficult to kill.
Mobility (1 to 10) How much mobility is built into a kit of a champion. Someone like Nidalee or Lee Sin would be pretty high, where as someone like Ashe or Xerath would be very low.
Scaling Potential (1 to 10) How powerful the champion can become at endgame. Champions who taper off or lose impact towards the end of the game would be rated low, where as champions who can get super insane towards endgame would be rated highly.
I'll start:
7 - Damage Output
1 - Anti-Damage Output
5 - Crowd Control
2 - Survivability
2 - Mobility
8 - Scaling Potential
I think ashe is in a bit of a rough spot in the current meta and gamestate. We have plenty of Mobile ADCs, so I'd bump her survivability up a bit to make her a better duelist.
Damage output- 9.5
Anti-damage output - 7
CC - 6
Survivability - 6
mobility - 9
Scaling potential - 8
Happy St Patrick's, outtie for real.
DAMAGE OUT PUT: 4
ANTI-DAMAGE OUTPUT: 3 (has shield for herself, about it)
CROWD CONTROL: 8
SURVIVABILITY: 7
MOBILITY: 3
SCALING POTENTIAL: 5
10 - Damage Output
10 - Anti-Damage Output
10 - Crowd Control
10 - Survivability
10 - Mobility
10 - Scaling Potential
Damage Output: 1
Yeah, she CAN do damage... but not on support income! Since you've only got two spells that deal only a small amount of damage, you need a -ton- of items to get anything out of them... which you probably can't afford if you're bot lane.
Anti-Damage Output: 8
It's good. It's not Mundo level to be honest, though she can put it on a lot of people.
Crowd Control: 4
A somewhat difficult to land slow, an easy silence (which is meh) followed by a snare that you'll likely only land if you follow up someone else's cc. Probably one of the lowest among supports.
Survivability: 2
HAH. Considering her poor cc and spending up to 10% of her max health every 1.2 seconds, she will likely go down if focused. Especially since building health kind of hurts you as much as it helps you.
Mobility: 3-4
Sloooow without passive, especially considering she has to get so close to her target.
Scaling Potential: 2-6
Really depends. If you can buy a ton of ap, she will use it to great potential. All four of her abilities have a way to increase their effectiveness - q can hit center, w (passive) for being low health/hitting multiple targets, e for landing both the start and end of the spell, and r for hitting allies.
7.5 - Damage Output
3 - Anti-Damage Output
8 - Crowd Control
5 - Survivability
2 - Mobility
10- Scaling Potential
9.5- Damage Output
2 - Anti-Damage Output
6.5 - Crowd Control
8.5 - Survivability
8.5 - Mobility
9.5 - Scaling Potential
6.5 - Damage Output - 9.5 ||| Left = tanky
8 - Anti-Damage Output - 3 ||| right = full deeps
8 - Crowd Control - 8
8.5 - Survivability - 7
9 - Mobility - 9
7.5 - Scaling Potential - 5
8 - Damage Output
3 - Anti-Damage Output
6 - Crowd Control
2 - Survivability
1 - Mobility
8 - Scaling Potential
1- Damage Output
9- Anti-Damage Potential
7- Crowd Control
4.5- Survivability
7- Mobility
3- Scaling Potential
6.5- Damage Potential
4- Anti-Damage Potential
6.5- Crowd Control
9- Survivability
7.5- Mobility
7- Scaling Potential
3.5- Damage Potential
4- Anti-Damage Potential
3- Crowd Control
9.5- Survivability
2.5- Mobility
3.5- Scaling Potential
- Damage Potential
Some people would say Katarina, but then you realize Twitch can critical strike for over 800 damage about twice every second in a line.
- Crowd Control
2.5 second stun, 1.5 second root, a pull, and constant AoE slow. Can't ask for more.
- Survivability
He has a lot of regeneration and a revive passive. He may not be all that powerful, but DANG a good Zac is hard to kill.
- Mobility
He's Kassadin.
and 
- Scaling Potential
Infinite damage and the ultimate late game carry.
Damage output - 10
Anti-damage output - 1
CC - 5
Survivability - 1
Mobility - 10
Scaling potential - 10
Damage output- 9.7
anti-damage output- 1
CC- 4
Survivability- 2
Mobility- 0
Scaling potential- 8.5
Leave him as he his, maybe give him displacement immunity on his ult
Damage Output - 6.5 (all focused into her R+Q)
Anti-Damage Output - 9 (self-heal and shield)
Crowd Control - 5 (unreliable snare, reliable slow)
Survivability - 4 (not as squishy as Anivia, but not tanky)
Mobility - 4 (speed boost, but no dashes)
Scaling Potential - 5 (scales well as a utility mage, scales poorly as a damage mage)
10 - Damage Output: Usually builds full damage and crit, can deal true damage WITH potentially 100% uptime if he gets kills and if he gets stacks with 
or 
will allow him to do even more damage
) and is more often used to reset the AA timer or a Split Second damage reduction if he either can't get to a target to Q. Plus with his Q he can dodge spells or turret shots. (If that doesn't count then a 3, or if you meant for a team member and not themselves then a 0. Yi is a very selfish champ)
ult or other burst, Q to dodge, he can be a little survivable
leap, 
leap, and 
is one of the best duelists, through insane kiting.