How well does Triple D do against Mii Brawler? It might be MU unfamiliarity, but the fact that a Triple D made it to winners is pretty awesome. Here's the video from showdowngg - part of it is cut off, though:
https://www.youtube.com/watch?v=6CGO657NlsE.
We cannot deny it...Falco's is the quickest, except in landing lag. The attack comes out just as fast as MK's F-Tilt.
Falco's Bair is frame 4 just like Sheik, Mega Man, and Pikachu's. Of the 4, Pikachu's stays out the longest since it's a multi-hit while Falco and Sheik's are one hit and Mega Man's a three-hit Bair. Pikachu's Bair stays out for 30 frames, Sheik's is out for 11 frames with the strong hit at frames 4-6 and the weak hit at frames 7-14, Falco's lasts only for 8 frames with the strong hit out for frames 4-5 and the weak hit for frames 6-11, and Mega Man's Bair out for 7 frames with the first hit at frame 4-4, second at 7-7, and the third hit at 10-10. For range, Sheik has the most range and it looks like a sex kick, but I'm not sure, then probably Mega Man, Falco, and Pikachu, but I'm not sure on Pikachu since Pikachu spins parallel to the ground.
For reliability, it's probably Mega Man's for kills, then Sheik's, and then Falco's. Why Falco's and not Pikachu's? Pikachu's Bair isn't for outright killing, in terms of comboing. In terms of comboing, it's probably Pikachu, Sheik, Mega Man, and still Falco. The strong hit kills Pit on center stage of Final Destination/Omega stages at 120% while the weak hit kills him at 241%. That's double and for how long the strong hit is out, how much range he has, and his air speed, Falco needs to be on point, but that precision rewards itself well.