The focus of my voting will be to 'correct' (within my perception) the mid-tier area and the most egregious of the low-tier areas before working on any other fine tuning. With this in mind:
+1
+1
+1
Reasoning:
Ryu - Is clearly a strong character that is simply harder to play than most. We have seen this is not just theory; he was used to excellent effect at Paragon. I wouldn't put him much further than Tier 3 based on our current understanding of the game, but I think he belongs there instead of Tier 4.
Robin - I would, just barely, put her in the same company of most of the current Tier 4. Her recent buffs have put her at the point where if you ask me who she hangs out with tier-wise, I think she has more in common with most of Tier 4 than she does most of Tier 5. I don't see her going higher than that, but performances by Dath and Raziek seem to bear out her going a little higher.
Palutena - No way is she this bad. Her up-smash is a great kill tool, her up-air likewise. Sh-Fair, sh-bair, dash attack, jab to grab, and a decent projectile all say she belongs up in around Tier 5 or so and I will continue to preach this and upvote her until she rises.
Honorable mention (NOT a vote): Swordfighter is better than Tier 7. Especially with all the buffs he has gotten. 1111-only rules are holding him back, unfortunately. He's tier 5 or 6 material in 1111-only, and I'd be willing to put him in 4 or 5 if he's allowed to trade out even one move (his up-B).