Halo, still regarded as my favorite franchise despite 343’s fumbles. Halo CE-Reach are some of the best FPS games. Sea of thieves is probably my favorite from this gen. Gears/Fable/Forza are all solid. The best thing is all the new games coming from MS first party. Grounded, Avowed, Everwild, all these games got potential.
Not including Bethesda yet, but Fallout would also be in my top franchises.