uluafishing said:
If your primary driving is street and sand, (the offroad guys will flame me for this) your best bet would be a good street tire.
Ditto what uluafishing said.
We've got sand that ranged from hard packed, to the softest, finest, baby powder sand you can imagine. I used to have a F-250 4x4 w/ 285/75x16 BFG All-Terrains and while it did 'good', it's nothing compared to my current 4Runner w/ 265/70x16 BFG Rugged Trails.
The tread pattern on the Trails is much tamer even compared to the generally considered 'tame' All-Terrain...after Hurricane Ike blew through, the access roads to the beaches were totally blocked in with sand close to 3' deep in some places. I was AMAZED that my 4Runner pushed right through, almost to the beach in 2WD!!! I didn't need to kick it into 4WD until I got squirrley in some sand ruts. While I know I would have made it in my F-250, it would have been a 4WD sand slinging, engine revving experience.
I know most people recommend airing down your tires for sand travel, and it's proven that it works...but I never have and unless one day I do make it out to Pismo/Dumont/big dune places, I probably never will. I just haven't had the need to air down, even while trekking down 50+ miles on Padre Island National Seashore (4wd only, soft sand).
Be prepared to get stuck! I say this with a grain of salt because...*knock on wood*...I've never been stuck in sand with a 4wd. But I am 100% prepared if I am! A tow strap is usually good enough to get you out of most situations, as long as someone is willing to pull you out. I've done my fair share of 2wd sand driving, and 2wd getting stuck...for all the tricks that I've tried (boards under tires, sand mats, wetting sand, etc) the only things that got me out were either digging myself out, rocking the vehicle out, or getting pulled out.