They are all connected with each other.
CP balance leads to Class Balance, Bugs/Exploits, Combat Mechanic Changes/Nerfs
Bugs/Exploits leads to Combat Mechanic Changes/Nerfs
Combat Mechanic Changes/Nerfs leads to Class Balance, Bugs/Exploits, Zerg Mentality
Zerg Mentality leads to Lag/FPS Drop, Class Balance, Combat Mechanic Changes/Nerfs
You don't have load screen times on your list!!!!!
I chose the wrong option but oh well.
Champion point balace:
I fought someone with over 1200 CP last night for over 20 minutes. I have 286 CP. I have never experienced like it before. I had never knowingly encountered anyone with that many CP before so I was always indifferent about the CP issue.
Long story short I gave him everything I had for half an hour and never once got him into execute range. He had 100 into magic damage reduction and 100 into elemental damage reduction, and could spec full damage because CP propped up his sustain and defensive needs. There was literally nothing I could have done about it.
This poll needs an all of the above option.