What should I mine

I am new to mining and would like some advice on what to mine and maybe GPU settings. I'll post a couple picture which show what I believe to be the best setting for my card, or at least its the best I could get. I'm also stuck between which coin to mine. I have pretty much narrowed it down to Zcash and Ethereum, but open to other options as well. I'm going to start with a 6 card set up and I'm entering into it as more of a hobby than a serious source of income. Even so, I don't want to throw away potential profits and long term is an option I'll be considering.

Any advice will be welcome, even if its not directly related to my comment.

Ethereum

Hashrates and settings- https://i.imgur.com/3qER5E4.png

This is full out 100% power draw(80 watts more than tweaked) with virtually no difference. Memory speed seems to be the only factor as long as you keep the core running at 1250 or so. Anything over 56% power draw is only wasting watts. https://i.imgur.com/PdTYIUK.png

ZEC

Hashrates and settings- https://i.imgur.com/PODN0Pr.png

Profit calculator(GPU Watts Only)- https://i.imgur.com/udp6Nz8.png

I also plan to hold the coin and would like to mine the coin with the most long term potential vs a coin that pays well now, but has limited growth. Kind of why I'm leaning toward mining Ethereum.