Not all Galaxy Nexus mainboards can take 4.2.2. Mine can't, or any 4.2.x for that matter. 4.1.2 works flawlessly though.
I had a similar scenario with my desktop and laptop. My desktop has issues upgrading to Windows 8, but runs Windows 7 perfectly. My laptop on the other hand, is twice as fast on Windows 8 than 7, and doesn't have any issues at all. Both are Core i5's with identical 64GB SSD's and 8GB RAM each.
Windows 8 doesn't add any missing features to my desktop, so I had to evaluate exactly why I wanted it so badly. The only things I could think of were prestige in the IT community and bragging rights, neither of which are truly important factors in how personal computing enhances my life. So, I went back to Windows 7 and decided to be happy with what I have.