Zotac ZBOX-AD04: Windows 7, Openelec, or XBMCBuntu?

Thinking about asking Santa for a Zotac ZBOX-AD04 to replace my old AppleTV 1. Trying to decide if I want to run XBMC via Windows 7, Openelec, or XBMCBuntu. I'd like to hear others' opinions on which option would be:


- Require the least tweaking to get working
- Most stable
- Have the best performance
- The most set it and forget it solution
- Most likely to work best with future XBMC updates
- The easiest to update when new versions of XBMC are released
- Work well with a Harmony remote

In short, which would provide the most trouble-free operation?

Thanks!