I know there are at least fifteen threads on ~comp alone about mechanical keyboards, but, this one is mine.

I recently had a run in with tendinitis, which taught me the importance of ergonomics, but I still wanted the clickety clack of a mechanical keyboard, so I decided to consider buying an ergonomic mechanical keyboard.

The first one that I looked at was the ErgoDox EZ (it was the first one I saw). It had a split layout, open source firmware, and a positive review from Linus Tech Tips.

The second one was the Ultimate Hacking Keyboard (I saw the Hacker News thread). I was interested in it for the Trackball Module.

These two keyboards are different enough from each other, so it's hard to compare them.

In conclusion, why should I choose one over the other?