Give east coast players an advantage since we have to deal with crippling ping.
I have played on high Diamond on NA and LAN (if you think my s4/s3 Diamond wasn't legit... then my s2 Diamond should suffice).
Even though in LAN the skill of players are worse, having a ping drop from 135 to 37 is massive. Not only is CSing, animation canceling, dodging skillshots, hitting skillshots, and walljumps are all easier... it also makes the game much smoother and fun.
I understand you are either too lazy or greedy to give us a viable server, but the least you can do is even out the playing field in some way.
Take a look at this image: http://i.imgur.com/5OCTGvh.jpg
From both a personal experience, and from information that is available, it is obvious that if you live on the west coast... you have an advantage.
You cannot call yourself a competitive game until the majority of your population isn't struggling with third world pings.
Give us a gold advantage, or add a turn rate onto west coast players.
(BTW LoL in China has 27 servers across just that single country)