So many different opinions on this. To me, it shows the diversity in the different rigs that we drive, the different ways that we drive them, and the different places that we drive them in & to.
Gerald's experience with 4.56's is hard to disagree with. I'd say he's right on for 80-90% of the street/trail applications.
Some examples that would alter this recommendation>
As Beasley said, a trailer makes a huge difference.
The rotating & unsprung weight of a 35" tire & wheel assy can possibly vary by around by about 50+ lbs each
, depending on if there's a heavy wheel, like beadlocks, and the tire construction.
How much hiway driving as compared to rock crawling?
How much armor?...how much lift?...how heavy is the gear that you typically bring off and on road?
What altitude do you live or play at? (Rule of thumb, the engine loses 3% HP for every 1,000 ft of elevation).
Then there's the TC ratio/crawl ratios to compare.
Personally, when I regear again, I'll use 4.88's. I'll go a little slower on the hiways...low 60's in MPH is fine with me. I don't want to (slightly) compromise the rock crawling like I am now with the 4:1 TC and 4.27 gears. My current setup works excellently for dual purpose, but when I want to really crawl, I want that option, and I'm willing to slow down a bit on the hiway for it.
My point is, there's no 1 answer best for everyone. Look at all the parameters, and choose for your own rig & purposes.