Most enjoyable to me would likely be my .44 wcf, ‘92 rifle with shotgun butt. For plinking, woods walking, and up to medium sized game at modest ranges it is a pleasure. I have used quite a few 86s with my favourite being a lightweight in .33 wcf or a 71 in .348. A ‘92 rifle in .38-55 was also a great gun. Some common threads for me with all of these rifles are; shotgun style butts, lighter contour barrels, half magazines, and well worn (smooth) actions. They all featured rounds that did what I asked of them, handled awesome, and functioned 100%. Similar rifles with heavy barrels (‘86 OBFM), crescent butts, jerky actions, poor balance, etc have all been traded off. Even “perfect” rifles like my Browning ‘86 src I have trouble loving with the src buttstock and full length tube and barrel bands.
Best lever action rifle would probably be some stainless steel, laminated stocked wonder that I have zero interest in owning.