In the UOA section, there are some very impressive results with 5W-30 Syntec. I'd go with that. Seems to have a VERY robust add-pac with Moly, Boron, and high Calcium. Also, at only 9.7 cst, it will deliver good fuel economy, and it doesn't seem to shear down much from there.
2003 Mazda Tribute LX V-6, 182k miles.
Castrol Edge SPT 0W-20; Fram EG2.