You really need to decide the nice thing about antpool and F2 is PPS. So you bring in a steady income but pay a fee. There are pools like Kano.is that use a system where luck is involved in it's case PPLNS ( https://kano.is/index.php?k=payout ). Kano I would say has the most loyal users. But again you need to decide what you want to mine at.
Are you saying you one week for the 3 costs 112 dollars? I am not following what you said with amount.