Let us face facts, you have to look at what your are planning on doing with you truck before you can make the decision on what rubber to choose.
If your nav is your daily driver and the most you will do is a bit of sunday or sand driving than a H/T will suit.
If your into touring and weekend camping trips, then a light A/T (dueller,wrangler,ATZ or 5rib) is quite capable.
If you want to have bit of a play while your out camping with the kids then a heavier A/T (bfg,cooper st,or dick ceepec fcII) is more than enough.
But if your into climbing every hill or driving through every ditch, revine and slop infested little bog hole you can find, then go for the muddies every time.
The point I am trying to make is, is that everybodies needs are different and you don't always have to have the biggest rubber to go where 'you' want to, you just need the right ballance of tyre and tyre pressure.
One last option is, that if you don't want to keep wearing out muddies, get another set of rims and keep your tuff tread in the shed until its time to play. A bit of an outlay at first with two sets of tread, but it all pays off in the long run.