Mining is a one time investment you should invest on mining platform this will make profit and you do not take may effort in this moment. But trading is little risky investment because you should always monitor the market then only you will earn good profit in this platform. My perspective both are little risk because day by day technology is improved so GPU cards are update on every year.
I don't any platform where profits from mining is guaranteed. More so, I am yet to hear a good testimony of a successful person who made it big from mining... all I hear are loses and scams. I will be glad if you can recommend some of the platforms you have in mind to me with thier links and any information that can be of help. Thanks.