@Fatmanonice
I found this on the dojo about Saki:
He rivals just about any main character. There were many requests from users for his inclusion, and he IS pretty cool, so I did what I could to include him. After all, this game does let you enjoy a dream cast of supporting characters!
Didnt you say Saki wasnt on polls?
And could that mean something for Geno.
He was definately voted for in the poll but he wasn't in Sakurai's journal. You see, the Toukeden (what I and many people refer to as Sakurai's journal), was the offical poll that Nintendo ran from the E3 06 to the second week of June 06. During that time, Sakurai posted on the japanese dojo site about 10 entries into the poll a day for 29 days that interested/amused him and his staff the most for that particular day. It is estimated that they recieved roughly 333 entires a day for a grand total of about 10,000 entires in all since it was open to the world despite being in Japanese. (There were a lot of sites that translated the poll and they did accept entires in foreign languages.)
In the 290 entires that Sakurai and his staff chose, more then 100 characters appeared. Only 21 of them were mentioned more then once and about half of those were mentioned 3 or more times: Geno (5 entries), King Dedede (5 entries), Diddy Kong (4 entires), Ridley (4 entries), Krystal (4 entries), Ike (4 entries), Claus (4 entries), Captain Olimar (3 entries), Takamaru (3 entries), and an Animal Crossing rep (3 times, two didn't ask for anyone specific and one wanted Tom Nook but didn't mind if someone else repped the franchise instead).
*I mentioned the ones mentioned more then two times because some of the characters that were mentioned twice have already been shot down like Jeff, Sigurd, and Diddy and Dixie as a team, one has been added (Lucas), and another's chances was severally reduced because of another update (Demille because of the Stafy update). Twice mentioned characters like King K. Rool, Isaac (based on a technically) and Megaman are still in the running though and likely as newcomers*
Now, because this journal reflects what Sakurai and his staff were interested in (but it by no means they are absolutely guarenteed a spot but it does give them a decent amount of support), it is expected that some very popular characters didn't appear. Sakurai even said in the journal himself that "adding just popular characters doesn't excite me." I personally believe (and there is strong evidence) that Sakurai was referring to characters he was going to make playable. Let's look at some of the people who have been made into ATs:
1. Samurai Goroh-easily the most requested F-Zero character since even before Melee and yet he didn't appear in Sakurai's journal.
2. Lyn-many polls both in Japan and North America showed that she wasn't too far behind Ike when it came to the next Fire Emblem character people wanted in Brawl but she didn't appear in Sakurai's journal either.
3. Deoxyes-the winner of the offical poll asking Japan who their favorite legardary pokemon was that Nintendo ran before the eighth(?) pokemon movie. Sakurai even went out and told us that Deoxyes was a very popular character but, like the Goroh and Lyn, he didn't appear in Sakurai's journal.
4. Saki- Sakurai came right out and told us just how popular this character was and how many people demanded him and yet, once again, he didn't appear at all in Sakurai's journal.
5. Waluigi- To everyone's horror, was actually the 4th most requested character for the next Smash Bros game in Nintendo Power's offical poll back in 2005 behind Wario, Toad, and Captain Olimar. Despite being highly recongized and appearing in more then 20 games since his debut, he also didn't appear in Sakurai's journal.
6. Toad and Daisy-same situation as above
7. Gardevoir-the only pokemon that actually mentioned once in Sakurai's journal and actually believed to be the most popular pokemon in Japan. This is yet another character that was sent to the preverbial graveyard.
8. Munchlax-referred to by some as the "pichu" of the Diamond and Pearl generation. This pokemon also has a massive following in Japan but didn't appear in Sakurai's journal and became a pokeball pokemon.
9. Meowth-similar situation as the two above
10. Little Mac- Only appeared once in Sakurai's journal and Sakurai hinted that, like the others I've mentioned, was highly suggested. He once noted how Punch Out, the Mystery of Murasume Castle and the Adventures of Lolo were his favorite games. Despite this, Little Mac became an AT and, at this point, it seems like Lolo and Muddy Mole (two other characters he said he really liked in different interviews) will probably go the same route since neither of them were mentioned either. Oddly enough, Takamaru (the star of "the Mystery of Murasume Castle) was mentioned three times and Sakurai has already made two really popular katanna users (Lyn and Goroh) into ATs. Perhaps he's making room for this hero? Only time will tell...
*side note: Sonic was mentioned in an interview but Sakurai didn't state how he felt about the character and meerly reflected on how he knew other people felt about him and the freakish demand for him. I believe the eight characters that Sakurai has mentioned in interviews since 2001 (Lucas, Sigurd, Little Mac, Muddy Mole, Lolo, Lip, the Balloon Fighter, and Sonic) are mostly exempt from the "journal rule" despite more then half of them being mentioned at least once within it. In other words, Sakurai sourcing them outside of the journal's context is relatively important despite, as he has said in the past, not just adding characters only he wants*
So there you go, ten examples regarding popular characters and providing evidence that Sakurai's journal provides evidence about who Sakurai and his team are interested in making playable.
On an ending note, it should also be noted that these characters were also only mentioned once and made into ATs/bosses:
1. Petey Pirhanna
2. Hammer Bros
3. the Advance Wars infantry men
4. the Excite Biker