I've only used wood pellets and clay (sorry, haven't tried swheat scoop), so I'll give you the list of my Pro's and Con's of the pellets:
-Completely controls urine odor (no ammonia scent whatsoever)
-Breakdown form of litter turns into sawdust, which can later be used for composting (no solid wastes!)
-Very minimal tracking (occasional pellet here & there)
-Natural, "woodsy" scent
-Can be very cheap if you buy generic wood stove pellets without any additives (make sure it's safe for animals, such as equine bedding)
-#2s not likely be buried, will smell, causing more removal/scooping per day
-if kitty has loose stools, can be especially messy to scoop/clean
-scooping out sawdust from pellets can be time consuming
-if sawdust isn't scooped often enough, can track around litter box area
-pellets cannot be flushed
There is a special litter box made especially for feline pine pellets, but I've never bought it because I liked my boxes to be high sided. (One cat is a digger!)
All Pine Litter Box - Why a All Pine Self Cleaning Litter Box?
I've reverted using unscented clay because one of my cats kept going outside the box even after medical issues were ruled out. It was when I went back to clay that they expressed a huge approval: they'd sit or play in the brand new litter and get super excited when I put new litter in, and over all, not a single "accident" after using clay. What it really
just boils down to is that it simply depends on your cats....
Perhaps others can tell you their experiences with both Sweat Scoop and Feline Pine, though, so you get a better idea.