Chogath and Rammus rework.
Since there is talk (mostly from riot reave) about reworks on certain champions with Chogath and Rammus included i figured id give my two cents on the subject as they are my second and third most played champions.
So for starters Rammus my second most played champion and the champion I got mastery 7 on recently. The reason this champion probably needs a rework simply because of how un-interactive his kit is. Id be lieing if i said I didnt completely understand it.
Key problem: his Ult and his W are uninteractive. While his ult is pretty good design for what little design they had at the time in teamfights its pretty much ignored and generally used to clear waves in the late game. His W pretty much says if you focus me you die. Which isnt very healthy gameplay even if it is completely balanced.
There are great parts of his kit too however: rammus's Q allows a good rammus to have extreme control over the map even from the top lane due to its duration and speed. His E allows him to single out a target for a couple of seconds which can win or lose you a fight. However they are balanced around the fact that they are extremely powerful but short ranged.
In order to solve this it might be best to have a different concept (loosely) similar to his passive that he returns damage that hes taken over a period of time as a on hit auto-attack for his W and some form of teamfight changeing ability for his ult to compensate for the thornmail and defensive ball curl synergy being removed.
As far as I know chogath's biggest problem is his Q. The ability will be completely and entirely broken if it is enlarged but is only balanced right now because of how impossible it is to hit. This overall is not very good design. If an ability is so powerful that you have to balance it around an RNG element it makes it less reliable overall and as such, less fun.
The good part of his kit however is just how much he can completely control a teamfight. For example He has such good sustain whenever he kills a minion {Passive: carnivore, whenever you kill a minion heal for 20-71 health} that any and all poke will be completely ignored and his ability to silence people for 2.5 seconds with feral scream pretty much means he cant be engaged upon.
Even killing him is a pain in the ass with his ultimate {Feast: Burst the fuck out of a target and gain 100-180 health up to 6 times} making it so chogath can pretty much build nothing but resistance and still have the health pool to stay healthy.
So really the only reason he fails is because of his Q that could be fixed pretty easily. Chogath; while the AOE is one of the biggest picking points of him, doesnt need as much AOE if his Q is something that is a more reliable form of control.
TLDR Rammus's w and R are un-interactive and could be changed for the better and Chogath has a pretty useless Q and a pretty good E that could be changed to be more in line for his kit.