Ok!
So, just so someone might take this post seriously, here's some more "logical" rankings!
Playable Characters Who, If Not Ranked, Will Be Anally Violated By OK at DLCon (with last names!)
I'd like to think these people should obviously be ranked based on their FE10 appearance! Hopefully the Rule of OK doesn't apply here >_>
Micaiah Miller - First primary character in the game. Loads of plot importance, required for use, etc. Pretty obvious.
Sothe McVargus - Sleeps with Micaiah! Or not >_> Anyway...required for use in the end, pretty damn good in the Dawn Brigade, present overall.
Elincia von Mistoff - Major importance in both games, pretty playable and present for both Part 2 and Part 4. Not required, but most people probably use her, and she's got too much plot viability to not rank.
Sanaki Smith - BURN TRATIOR~ Otherwise...plot important, present in both games, unique weapon, class, item, etc. Stands out since she's required, too.
Kurthnaga Adair- Plot in both games. He's also required, and a good unit. You're going to use him a little, even if it is just for the support skills. Formshift also avoids most Laguz issues too! Really feels like a good character that fits all that you'd be looking for in the laguz translation (he's like a Royal! And level 24 isn't crazy far behind - he catches up fast, and there are loads of opponents on the final maps).
Reyson - Plot in both games, may be required near the end of FE10 (is the best of the Herons anyway), is awesome with his support abilities as well. Strikes me as big enough to rank, really.
Playable Characters Who, If Not Ranked, Might Be Anally Violated By OK, If You're Cute (with last names!)
Characters that, while not people who should be obvious ranks, are strong nonetheless and really should have a strong chance of being ranked
Lucia Ishfal - Plays as a Lord for a chapter. She's...pretty decent? Anyway, she has plot in both games as part of Elincia's retainer crew, is a required join (though not use), and is memorable at the least for being usable. More plot than the other swordmasters, and is memorable for also having voice lines! I think! Plus, hey, more FE10 swordmasters are cool.
Geoffrey Grashford - See above. Also has Brave Lance hype, so turns out pretty good in the end too. Is also a better green-haired cavalier than FUCKING OPEN YOUR GODDAMNED EYES YOU WORTHLESS PILE OF SHIT OSCAR!!!!
Bastian McManus - See above. Same thing, except he doesn't serve as a Lord, but is instead a SECRET AGENT ("That Sage is a Spy!")
Nailah Jackson - Laguz Royal. Least plot of all of them, really, I think, but she's the first you have access to, and she's pretty awesome.
Caineghis Moriselli- See above. More plot than Nailah too.
Playable Characters Who, If Not Ranked, Might Be Anally Violated By OK, If He's Drunk And It's Dark (with last names!)
Characters that, while not people who should be obvious ranks, probably are interesting enough to get in, give or take. This also includes old FE9 characters
Pelleas Ponmerci - I...lots of plot, and, while a 2nd game character...he's easy to get, and he's awesome. It's FE/PKMN - a lot of the basis of characters is theoretical and based on stat tierings, etc.
Volug Afroman - Half-shift makes him better than all the other non-Royals! Helps the DB, and people like his usability (for all that I didn't get much out of it in-game).
The Dawn Brigade (Edward, Leonardo, Nolan, Fiona, Laura, Aran, Meg) - The first three are a bit more unique due to their weapons, but they all fall in the same vein as a FE9 Character who only appeared in FE9. i.e., used in-game (and horribly memorable for failing like sin...except Laura), but moreso as bodies than anything. Laura should be ranked most definitely, as she is the uber tank in the Dawn Brigade.
Remaining FE9 People (Kieran, Tauroneo, Zihark, Makalov, Astrid, Marcia, Brom, Largo, Calill, Devdan, Danved, Rolf, Shinon, Gatrie, Rhys, Tormod, Muarim, Stefan, Renning, Mordecai, Haar, Ilyana, Giffca, Ranulf, Lethe, Ulki, Janaff, Nealuchi, Leanne, Nasir) - Uh...don't feel like going through all of them. Stefan has claim to Vague Katti, Renning has a boss form, Giffca is a kind of Royal who starts with a Laguz Gem...yeah, not much else to say. Granted, I'd say rank Kieran, boot Oscar >_>
Playable Characters Who I Don't Care Enough to Fight Over (with last names!)
Characters that...are borderlineish
Remaining New Laguz (Vika, Kyza, Lyre, Gareth, Rafiel, Skrimir) - Eh...whatever. They suck DL-wise - all puny, pretty much. Plot important in...Skrimir's case, but...
Bosses!
Jarod, Lekain, Hetzel, Valtome, Ludveck, Numida, Izuka, Zelgius, Sephiran, Ashera, Levail, and Oliver (PC, I know, blah blah blah) are the strongest, I think. Have to be killed, are awesome (LIKE HETZEL), and plot important. Oliver is just coooooooool. The others...are fine to rank, but not as important, really. I could see saying no to Ludveck (not required to kill), and on Numida since he's...kind of generic, but eh. Would also support some FE9 people like Ashnard and Petrine as well.