The AW is inexpensive and popular but wasn't aware they were producing it in sabot (we sell "rifled").
Sabot's are just like center fire rifle rounds, you are going to have to try a few to find out what your shotgun shoots best.
There is all manner of projectiles now available as the "bullet" in the sabot - including some "premium" or even bonded rounds (you can get a Federal Fusion bullet or a Hornady SST in a sabot as an example).
If you are keeping your shots to somewhat under 100 yards then whatever shoots how you like will be "more than enough". If you plan on stretching it out, then you may want to play with the more "exotic" projectiles.