to being equal for me. I think season 1 was probably more consistently solid throughout than season 3, but the reason I love season 3 is because of the high points. By "high points" I mean things like Johnny and Daniel teaming up near the beginning, the trip to Okinawa (I like the 2nd movie almost as much as the 1st), Kreese's backstory, Ali making an appearance (her and Johnny's date was great), and I also really liked the last episode (especially the very last fight at the Cobra Kai dojo and what it's leading to).
I admit I didn't care nearly as much about the kid drama in season 3, and quite frankly, a lot of the kids are starting to annoy me. I live for nostalgia, and the older/original franchise character stuff really shined for me. I guess that's why I put season 3 at the top for now. At the same time, like you, I really like all of them, and wouldn't say any of the seasons are bad or anything.