It will be nor profitable for mining BTC from PC . it waste time and electricity
Must have a professional mining machine such as Antminer or KNC
If you computer CPU support the AES_NI instructions, it is good to mine the Monero. It is quite profitable now.
It means , he must has a good specification rig before start mining any coins.
I think mining new coins , and for hope your coins listed in exchanger with decent prices is good than mine with high diff coins.