Only thing i remember is 14 gas 14 pool and then 20 expand or something, with some early lings.
But nowadays 14 pool 15 hatch also popular? But i never know when to take gas and make queens with that build.
Also what is the ideal army composition in all matchups?
ZvP : roach/hydra (corruptor if colossus)
ZvT: ling/bling/muta (later ultra spam)
ZvZ:

Did alot change with recent patches???