Well OK...
Snake has SA frames at the beginning of his recovery, so no move can out prioritize that. However if you are fealing lucky try and grab him before he lands and don't hit him. afterwards watch as he falls to his death.
Pit has those blue wing things(extra Jumps) however he has a hard time dealing with you if you are above him. In terms of priority you just need to get out of his disjointed hitbox and you should be fine.
MK is a toughy due to his upwards twirly thing (b up I think) if he didn't have that I would say you handle him like a pit player. Rather than try and out prioritize him you have to hit him below the stage when he is relatively close to it and follow up from there.
TL is the one you need to out prioritize, try to stay out of his down air range at all costs unless you are so far below him that you can quickly jump to the side. Hit him with rising pounds during his lag/hitsun frames.
Olimar has a tether recovery and therefore is easily gimped.
DDD is hard to gimp unless you play mario or squirtle in your backup mains in which case just watergun him to death. If you don't play those characters you should try and footstool him as he is a huge target, just watch out for his uair, his up b, and if he is a risky penguin then watch out for his heat hammer thingy.
Tell me if I missed any huge threats 'k