I've had a Rangeman for a little more than a year. I've always had my eye on the Mudmaster but chose not to justify the price because of the outstanding range of features of the, well, Rangeman.
But in talking with a friend who's daily wear is a Mudmaster recently, I realized just how much I appreciate an analog face (the watch, not his). So fueled by a glass or three of brown liquid, I pulled the trigger on a Mudmaster one night last week.
As you know, it's not that one is greater than the other. They are just different. I have enough gadgets that require charging, and my watch is not something I desire to plug in to have the ABC features- or tell the time.
In wearing my new Mudmaster, I have a few observations. 1) I can confirm that I do in fact prefer reading an analog face for the time, as well as compass direction. The analog hands are much easier to read in variable lighting conditions. 2) I do like the robust form factor of the Mudmaster on my wrist. 3) I like my Rangeman even more than I thought I did; not more than the Mudmaster, but at least equally as much, albeit differently.
In terms of overall raw functionality, it's hard to say which watch is "better." It really comes down to a couple simple questions. Does one prefer analog or digital? What features does one need most readily at hand, with the fewest pushes of a button or pulling of a crown?
I don't know if I'll sell, or give my Rangeman to family member or friend. It's not so much smaller than a Mudmaster that it will be specifically relegated to certain duties like projects that require me digging my hands in between parts of an engine or furnace. That said, I appreciate having two of the best ABC watches Casio has ever created.
*a perhaps inconsequential observation- I was able to get the Mudmaster to receive a time calibration signal mid-afternoon, something that my Rangeman has only ever been able to achieve after midnight. Could have been a random atmospheric anomaly, but noted nonetheless.