Mining ERG is more profitable than ETC and more than ETH also 
You can also mine ERG+ZIL for more profit.
There are so many alternatives out.
Yes, it is. But as i see, right now nethash or ERG is x2 from week ago and grows up. And summary trading volume is about $15kk. If you mined ERG before - this is good time to sell. But to mine it right now - you can get some profit probably for 1 day, maybe less. You can also mine ERG+ZIL for more profit.
There are so many alternatives out.
Actually this is still time to sell everything, price is good, not sure what will happen yet, I still will follow my prediction, I still think thieves will create a last bulltrap --> btc 79k then they will crash it to 10k. They will try to steal money from the sheeps one more time and in that move they will make sheeps to believe will go to 100k then crash from 79k to 30k in few minutes then a week later from 30k to 5k then rebound to 10 to 15k and stay there for the next 4 years or so. They need time to prepare for the next bullrun/thievesrun.