now I'll divide the quoted post into parts and fix it, like it should've been written XD
ITP, I know you've had the game longer than me so you probably have a better understanding of how characters play, but there are a few things I disagree with.
I'll do my best to explain my reasoning, while listening to your arguments and deciding whether they are right are half right. If I've not noticed something that is big, I will fix it.
First off is CF and DK in low tier. I know Falcon's been nerfed quite a bit, but he still has alot of combo potential and Knee combo-ability. I understand he's not the man god he was in Melee but he can still be played similarly to a very high end.
the new captain falcon has sucky air mobility, the worst recovery in the game, along with gannon and Ivysaur, his B moves still suck, even more so than before, his combos are hard\very hard to pull off, very situational, and very hard to do, and I'm not sure if they are natural combos or just DI mistakes(yes, I'm reffering to the C.Falcon combo vid that's out there)
his knee suffered OMFG nerf, and now won't kill until very late, overall, counting his awfull edge guarding,recovery,reduced speed, and lack of options, CF is low tier IMO.
The same can be said for DK as he seems to be in low tier simply because people havn't been playing him
His Bair is still highly spammable, if not more so as there seems to actually be LESS lag on in now, and his Uair is still beastly. His ground game isn't too bad as he has decent land speed and reach and his Donkey Punch is still to be feared.
DK has a good Bair and a good Uair, and Cargo can gimp if done correctly, and the giant punch is ok. but that's where it ends, Awful recovery, 0 edge guard options, lack of variation(which is now a big deal, due to diminishing returns) and he's meh speed, with a gaping lack in approach options.
the things you mentioned make the diffrence between DK being an unplayable bottom tier, and being a difficult to play low tier.
Im also not too fond of Ike as high tier. While he may be absolutely beastly in strength, and his Bair is very fast, he's too overly reliant on it, and with the new reduced knock back system he needs more for his air game. There's also the issue of his speed which is absolutely atrocious, and while his Forward B is usable as a means to move around the stage, with the new easy power shielding it seems really easy to punish. Ike is definitely not unplayable(like he was in the E for All demo >_>) but he's definitely not high tier material. Mid tier tops.
you have obviously not played or seen enough Ikes. his Jab combo has priority over everything, and combos well out of aerials and racks lots of damage, his Ftilt is fairly quick and very lethal. almost all of his moves have KO potential and kill at really low percentage.
his Fair has tons of range and KOability, and his Utilt is quick and killer. mix all the above with an appoarchable Shield grab\Dashing shield grab game, and you've got yourself a high tier character.
did I mention he has 2 very usefull return options and that they are hard to stop when correctly used? and the super armor frames? the counter? need I say more?
There's also Peach, who, despite her Dsmash(or maybe, because of her Dsmash) can't possible be high tier anymore. She got hit hard with the nerf bat with the Dsmash but there's also her recovery, which has seen a drastic reduction due to her now minuscule second jump. While her horizontal recovery is still top tier, her vertical has become a huge issue. And her with her now unable to really fast fall from a parasol, she cant even mindgames->ledge anymore.
again, you've obviously not seen enough of the new peach, while the vegtables,Dsmash,Fthrow, and others have suffered serious nerfs, there are still many options for peach, while the main part that leaves you wanting more is her KOability.
Basically, her Bair and Nair retain their high priority, even though they lost range. her new Dair is monstrously defensive, Dodge game is still very good, new dash attack is great. new Jabs are almost the best jabs in the game, Dtilt is improved by a lot, new Utilt is great.
Dsmash and Usmash are still good, albeit far from being half as good as in SSBM.
Uair still rocks, Grab game is still good for damage racking, Fair is much quicker and very powerful, UP B goes further up, and makes up for the non-existant second jump height.
basically, peach is still good, she's just much less good than her melee self. but she certainly justifies being in the lower half of the High tier.
And while I'm at it(even though I hate to do this) I have to bring up Kirby. He's just not high tier matierial, despite his huge amount of buffs. His aerial hammer and his Fsmash are both powerful finishers, but they're still tremendously difficult to land correctly as Air Hammer is easy to predict and Fsmash is still just as laggy as in Melee. He may not actually need a drop in the tier list, I just think you should extend the tier list to include him(and Ike and Peach) so as to remove a bit of the load from high tier.
the last complaint, is one I can't answer well, since my opinion on kirby is not solidly formed, I have yet to see many kirby players or gameplay, but it seems that overall he is more of the lower high tier level, than the higher mid tier level. I may be wrong here. this is all opinion.
yes emblem lord, you're overating him, marth does not have the highest KO-ability in the game, that goes to things like Luigi's Fire punch, GaW's Judgement 9, and Ike\DDD's Fsmashes.
marth has good KO-ability, but against a skilled player playing a good character or one that outreaches marth, it is very hard to use all of his moves and he gets *****.
while I'm not saying he's not great, or not top tier material, he is definately not the best at anything, he's just the most all-around good character, except in the projectile area.
jngshin, Lucas lacks approaching variety, that's what makes the diffrence between him being top and high, he's just useless without a good approach, even with all of his great moves.
my opinions are based on a month and a half of playing the game, lots of fests, tournaments, and more in israel, and basically every good player in our community's experiecne as far as I've seen it.