That's your opinion and you can't go wrong with liking whomever you listed. But JB is way better than you apparently perceive. He's not just a guy who outworks people. He is a tremendous player, and if you have the eyes to appreciate everything he does on the court, that becomes clear. Ask Ray how good JB is --- those two dogs go head up all the time during the summers and Ray's still playing in the league. He'll tell you. Ask Butter how good JB is. I can also tell you this, as much as the coaching staff brags on Joel, there's stuff they don't usually say publicly that is even more complimentary.
Folks can have no-lose arguments over the best UNC PG (behind Phil, of course), which speaks great things about our program. But wherever you come down on that, the narrative of pigeon-holing Joel Berry as merely a tough, hard-worker misses the mark by a country mile.
Other than that, I'm not sure why you even brought up Kuechly? Dude's a freak and has probably surpassed Butkus as the best Inside Backer ever to play the game... and that's not something I say lightly.