>>8625108a few of my favorites:
hangman's sad drunk cowboy arc. spanned 2 years (arguably 7 if you include all the nu-japan stuff, but i dont drink onions so i wont include it), had multiple sections and substories with the bucks, kenny, don callus, and the dark order.
MJF and cm punk (best feud of 2022 in all of wrestling), spanned about 6-8 months depending on where you want to start with mjf taking jabs at punk.
the acclaimed's rise to fame, could easily say this was over a year. compounded with the billy gunn vs. his kids/daddy ass storyline, and even played into the Keith lee breakup with Swerve.