Here is the metagame right now
Tanks are useful, especially with bramble vest as a cheap source of grevious wounds. Therefor hyper carries are in demand to kill tanks. (also the rapid-fire, shiv, warlords build is strong/op and can burst squishies) and to boot ardent sensor empowers attack-speed oriented said-hyper carries to apply the effectiveness of the item. In other words, this meta is a triangle of three classes being strong.
I get that many players dislike how strong some of the classes/champions/items are right now, but when you really think about it, this is one of the most balanced metas to arise in a LONG time for league of legends. THREE classes being good at the same time (tanks, adc's and supports -"enchanters" at least. ) Condolences to AP mid laners, but honestly, the meta from a broad prospective, is fairly well distributed right now.