Here are my counterarguments, in order.
Zelda: I don't know why you can't see how amazing she is. She wasn't just buffed, she was improved an insane amount. Her fair/bair are basically the same as ever, amazing. Her Uair has more kill potential and a larger hit box, Her F and U smashes are both better kill moves and have combo potential, her neutral A comes out fast and messes with opponents struggling just to get through your rain of fire. Din's fire obviously is ballsout, possibly the best attack in the game. Her Dsmash comes out insanely quickly and has kill potential, off of a missed Din's fire if they've put themselves in range, you can usually Dsmash out of harms way. Her tilts are still good, with some kill and combo potential, but IMO aren't even needed. Her forward and back throws still have the same great kill potential. I'll edit in some links to insane videos when I get a chance.
Diddy: Bananaspam is almost as annoying as Zelda's rain of fire. Me and my friends have been practicing it a lot lately and it has a boatload of potential. Diddy's ability to rack up damage quickly and annoy people isn't really questioned by anyone, so I'll move onto kill moves. His Fair and Bair are both decent kill moves (he has one of the best Fairs in the game), his back or forward (or both?) throws have kill potential. His Dsmash and Fsmash are both good kill moves as well. All of these moves come out quickly, have little lag and have plenty of knockback. I'll admit, he isn't high on my list of prospects, but once bananaspamming becomes more perfected he'll be a frightful matchup for most characters.
Snake: If you're too laggy with Snake, you aren't playing him right. Here's a list of his quick moves that are viable. His up tilt juggles and has some killing potential. His forward tilt is a great combo with damage and kill potential. His neutral A combo has some kill potential, but is mostly just the same as his forward tilt combo only with more range and less knockback/damage. His grenades are practically his whole game. Annoying as hell in the hands of a skilled player who shield cancels them to drop them at the feet of a foe in your face, or times it out to explode on contact, spams them, etc. His Bair is a great kill move that's as fast as any Bair and has ridiculous reach and priority, the same can be said of his Uair. His dash attack is good, and can cancel into his Usmash and provide a super wave dash, against a ledge the Usmash will always hit at low and medium percentages. His forward B can edge hog (and spike) very effectively. His down B can be placed during downtime and blown up fairly quickly, if you spam grenades you can do this without being noticed and catch opponents off guard, especially dropped out of the air (it may be mistaken for a grenade). His Nair off of a neutral jump is damage and kill potential. Simply put, Snake is a very complicated character with maybe more techs than any other character, but top players recognize his potential as a great character.
Lucas: He loses Nesses most glaring weakness. His PK thunder passes through people. On top of that, it's a great move to spam from a distance against the likes of Ike, Dedede, Bowser, etc. It's a great edge guarding move, it runs a tighter circle than Ness' and is easier to control too. His PK Fire is obviously great, decent range, damage and knockback. Comes out quickly enough with little lag afterwords. Good for edgeguarding or spamming. His down B is essential for beating other projectile spammers like Pit, Zelda, Falco. His Fsmash has huge kill potential, good range, decent speed. His Usmash has enormous range and kill potential, and despite it's speed is a very good move. Dsmash is forgettable, duration is great and can catch opponents trying to spit-dodge off guard. Tilts are mediocre. Utilt can combo some. His aerial game is amazing. His Fair hits for good damage, is very quick and combos well. His Bair is good for comboing, keeping opponents at distance, spiking safely.
Ike: The key to playing Ike is to take advantage of his getting used to timing his moves. DON'T spam Fsmash, this is a terrible strategy. His forward and up tilts are both good for comboing, damaging and KOing. His Usmash has amazing reach and kill potential, not terrible speed either. His Fsmash should be used sparringly as a kill move or to catch opponents off guard/edge guard. His neutral B is a good kill move with invincibility frames and good range. His forward B is essential to recovering and is very quick/fairly strong. Good for comboing, catching opponents off guard, recovering. Aether does good damage and is a quick attack that's easily combo'd with. His aerials are very important. Bair is maybe his best attack. Stupid fast, stupid strong, hard to time due to short duration. His Fair is good as an approaching technique with lots of knockback and priority. His Uair is similar to his Fair only obviously to be used on falling opponents.
Olimar: Very hit or miss here. He has either the longest or second longest grab range in the game of a none tether-grab character (the other is Charizard). His throws are all pretty good. Tilts are mostly useless, since his smashes are so broken. His smash attacks are all basically the same too. He throws a pikmin in the direction of the smash. All of them have absurd knockback and speed with decent priority and great range. His Fair and Bair and Uair are all quick and strong with no lag and some kill potential. His Dair can spike and also does plenty of damage. His forward B is very important too, keeping opponents busy with a barrage of Pikmin allows you to approach him more safely or force him to make a mistake, while also racking up damage. Just be careful about your Pikmin count. Obviously his biggest weakness is recovery, since he can be edge hogged easily. The best Olimar players have a purple Pikmin available at high percentages, and can down B to a purple, throw it at the edge hogger, and snipe the edge with his grapple (sometimes killing the edge hogger). It's very difficult to beginning Olimar players, but more than doable.
/End rant.
