Hi, thanks for the help too!Hey My Friend,
cheapaudioman did a YouTube review of the AL200, and he really liked it. He found the headphone amp struggled with Dan Clark Aeon's, but those are 13 Ohm headphones. It drove the Hifiman XS with no problem. He really praised the amp section, and liked most of the eq settings. Check it out, I think he did a good job on the review.
Like the others above said, it comes down to your use. If your primary use is to drive speakers, than its a no brainer for the AL200. If your wanting a headphone amp or DAC than the other two are your better options.
I have the DL200 and really enjoy it. I bought it because of reading this thread. The new ESS Sabre ES9039Q2M sealed the deal. I was really excited after reading up on it through the link in this thread. My purpose was for a quality DAC and headphone amp, and later on add an amp to drive speakers when I upgrade. I love that I no longer have to unplug my computer speakers to plug in my headphones. The extra power in the headphone amp is icing on the cake.
Good luck and let us know which one you choose, and your thoughts.
Basically it would be only for my headphones right now. Later I might buy speakers but it will not be soon.
I might go with the DL200 then, just a bit sad that it does not have EQ profile (for example to tame the treble on the Mezz 109 Pro)