so:
cloud's dtilt is as good of a combo starter as bayo's
diddy's fair is as good as luigi's, palutena's, lucario's, and ike's
falco's bair isn't a top 15 bair and is as good as pac-man's mewtwo's, bowser's and toon link's
shulk has one of the 15 worst bairs in the game
learning tons of new things today. good meme thread
Falco's Bair IS a top 15 Bair. It's basically a slightly smaller version of DK's Bair and is Falco's best move. (Wait, I misread your comment again, crap. Nevermind, I agree with you. Here's something valuable; don't e sarcastic one the internet. I just wasted my time ranting about this.)
As for Diddy, he has the third best Fair in the game, only behind Mewtwo and Sheik. It comes out Frame 6, reaches as far as Marth's Fair, and sends opponents at the Sakurai Angle, which is a slight semi-spike. Overall, Diddy's Fair is better than Luigi's, Palutena's, Ike's, and Lucario's Fairs combined. Oh, it also deals 10%, which is disproportionately much considering how fast it is. I mean, SH Fair is what makes Diddy pretty good in the air. (Diddy is still much better played on the ground though). Palutena's fair is garbage though, as is Ike's. Ike's Nair is far better than his Fair, and Palutena's Fair is only good when sweetspotted.
Cloud's D-tilt isn't good aside from granting invincibility on his legs, it doesn't combo, but rather puts opponents into a 50-50 situation above him, which is pretty good, but Bayonetta's D-tilt combos into Witch Twist, ABK, Fair, Nair, Uair, another D-tilt, Up-tilt, Jab, and her ladder combos. It also has a very low FAF, is easily spammable, is a disjoint, and is the best move for Bullet Arts, dealing 10% in Bullets. (Wait, you're saying Cloud's D-tilt is worse than Bayonetta's, right? If so, than nevermind what I just said. I hate internet sarcasm.)