Question 1. If you hoard the coins, received from the cloud mining, until the price of bitcoin increase, would you ROI?
Yes. The length of time to ROI depends on the cost of the miner and payouts.
I have bought some GHs with CEX/Ghash and they mine whatever they feel like, and when they mine Alt, they take maintenance fees in BTC, and this eats up any profits made from mining Alt coins.
When they mine BTC, and take maintenance in BTC it break equal or I profit a bit.
What option is best suited to me, where I am handsoff, but still in a position to ROI?
I have a 10 hour day at work, so I do not have time to switch pools for best results.
Best return right now is the Zen Hashlet from ZenCloud/GAW. It's basically set it and let it run. It cannot change pools, but returns much better than other pools.