Now in the right section...
I've researched and it seems to be personal choice but I'd like to throw it out there personally.
My two choices are the ARB (50qt???)
and the Norcold 751
Undecided on size, no frame of reference. There is a smaller Norcold and one smaller and two bigger ARB's.
Either way, I like what people are saying about the ARB as being purpose built for the 4x4 crowd. It's hardcore, easy to clean, super efficient, blah blah blah.
The Norcold just has the traditional front opening and would mount easier and have a clean install vs the ARB that would not be as neat of an install (thinking SMB 50 look). Don't know how the ruggedness or efficiency compares to the ARB????