I have to vote for the Hornet as well. I haven't heard a Move or a Supermicro. They might sound better. But the differences in the top tier of amps are reportedly quite small. What the Hornet gives you is 3 gain controls, so you can power low impedance IEMs or high impedance full size phones or something in between. It also gives you a built in battery charger, and an AC power supply. It's also quite tiny, and built like a tank.
The other amps mentioned may have slightly better or different sq, but I don't think any of them are as versatile or convenient as the Hornet. The Move doesn't come with a power adapter, and it's still not clear which power adapter is quite right for it, not to mention that some rechargeable batteries apparently don't fit in it. These things may have been ironed out by now, but you should still factor them into the price (i.e. if you want rechargeable batteries, you'll need to buy them and a charger too.) The one downside of the Hornet is that it doesn't have a DAC.
On top of all this, the FS boards are suddenly flooded with Hornets from all the people who want to buy Moves. So I'd suggest picking up a Hornet now, while the prices are so low. They might not be this low forever.