Is it better to hodl
btc or invest it in other crypto like bitcoingold or bitcoincash or bit connect and others? Where will you profit more?
I would suggest hold your bitcoin, why because you'll get price hike and free coins with every fork, say you had btc when the forks took place you already got free coins so why would you sell. Normally I don't like alts but you could put 5 - 10% of your money in bcc and Bitcoin gold however gold after a while, they also are giving good returns can't ignore the fact, however when they crash they crash bad and that's a risk you should be ready to undertake.
I am also suggesting the same holding the bitcoin will give good profit than investing them on other investments so hold your bitcoins as long as you can to get high profits.If you want to grow your bitcoins it is better to start trading buy coins at low price and sell them at the high price will allows us to get extra earnings but trading is not an easy job so learn trading skills before start trading.