its a great programm but you should bring the time to config right for your needs. and sometimes it has some wired bugs with profit switching not saveing results or not mineing the best coin.
I'm not sure what you mean that AM doesn't mine the best coin? The Profit Miners in AM use data from Whattomine for individual coins that you setup in a custom pool group... or will use the data that Nicehash, Zpool, MiningPoolHub, or MiningRigRentals say is the most profitable.
If you don't trust Whattomine or the Online Services to give you the most profitable coin, then you need to setup templates to quickly apply mining software, pools, and settings to the rigs and change them yourself. This is as simple as right-click a Managed Miner and select the template. In a few clicks you have switched. That's a million times faster than RDPing or consoling into each rig and manually configuring and running batch scripts.
If you are having issues with bugs, report them in the AM thread, and Patrike the developer will help.