Problem: Duck Hunt in F tier
Reason: Duck Hunt's projectile/stage control game, while predictable, is effective. Acceptable killpower, albiet wonky hitboxes on smash attacks. Good shield pressure with projectiles, and decent grab game. Can combo out of certain projectiles.
Solution: Move Duck Hunt to Mid/Low D tier
Problem: Pit is slightly above Dark Pit
Reason: In light of the recent buff, Dark Pit now has a sweetspot on the tip of Ftilt, just like Pit. The ONLY differences between the two now are the Arrows and the Side Specials (Arms). While Pit's arrows are superior, Dark Pit's arrows are still a decent projectile and good for spacing/pressure. Dark Pit's Electroshock Arm is FAR better than Pit's Upperdash Arm, killing almost 40% earlier near the ledge (90% v 130%), and around the same midstage.
Solution: Switch Pit and Dark Pit's placements.
I also don't agree with Ryu and Sonic's placements: They should go into A tier, as I feel that only Sheik, Zss, and Rosalina and Luma have solid, consistent tournament results over Ryu and Sonic.
I'd put Ryu above Ness. Ness's grab game means that he has to get close, which is where Ryu excels. Ness also can't break Focus Attack, except with Fair and Dsmash.
I'd put Sonic in A after Diddy Kong. Sorry, I'm real tired, and I can't be bothered to explain right now. I will though, eventually.
Various other things are:
Wario over Luigi?
G&W better than Doctor Mario?