Need and advice.

[Sywver]

Hello everybody!
I'm planning to invest some cash in mining machine/s . Can you advice me should i mine BTC or something else.
If it's BTC should i invest in Antminer or to Avalon's. And which one.
I'm doubt about antminer, because i heard many bad feedback for bitmain.
In my country the electricity cost is about 0.063 $ per kW/h so i think it's profitable.
Cheers!