I'm in your boat as well in the search for the most useful one.

I was a user of Nemos miner, but dev has been "a little bit absent", and customization its harder now.

Nemos does offer a good integration with the Multi algo Btc converted pools like Ahashpool and zergpool.

By mining the "BEST NOW" algos, you are supposed to use the maximum of your card, that is the combination of the best miner & the best algo.
Fact is, in order to do that , there are miners that aren't so well supported.

For example Latest Zealot/enemy is running Skein at 30 % more speed than ccminer Alexis, but its 3 days that I am trying to integrate/use it. Not that I am mining Skein for more than 5 % of the time, but when it does, does offer a very good revenue

I can tell you what I found on the other multiminer so far:

Aio miner doesn't have an easy approach to the multipools and you will have to create a lot of pools by yourself.

Forager does offer AMD& Nvidia, but I have one rig still running test since 24 hours.

Most of the Algos with SGminer, btw arenot  worth it and normally I have the Amd part just mining CN variant by myself or Lyra2ver2 or Neoscrypt

HashAuger, I will test it next week and let you know here