in a year = faucets
in months = trading
in weeks = mining
in days = mining ALT coins and exchange them
in hours = bitcoin ATM
easy formula
mining(alts or btc) is not a viable option for people that really are in doubt about how get 1 BTC/year
And I doubt one would get 1 BTC a year with faucets.
From your options I think ATM is the best(?) one, if you don't mind to pay high fees