Best off/def play book??

Old gen or new gen? If old, PBs are the same as in M23.

It all depends on your style and preferences.

OFF: 49ers has a strong run approach, Jets is the best for passing, also those infamous meta bunch formations, and Run n Gun has those crazy RPO and Wildcat formations to mess around with.

DEF: 49ers is good for 3-4, Chiefs in 4-3, and Alternate 4-6 seems to be the most popular with BNOG and 4-4 formations.

I go with 49ers off and Chiefs def.

Jets offense/46 defense

I run bills offense and various 43 defensive playbooks.

Chiefs for both

I use Heavy Run on Offense and SF on Defense...like them both a great deal.

It’s all personal preference. I like the Dolphins offense & the 46 defense.