I remembered a program a program I had for automated Google testing and tried testing touhou popularity. I've heard problems with the official poll of people preferring Reimu and other main characters because they are put on the spot. I figured testing a database is probably a better indicator of the most popular character.
A google test determines the popularity of something depending on how many hits it has on Google.
To clarify I used the names I got off of the 2012 popularity pole on the touhou wiki:
http://en.touhouwiki.net/wiki/THWiki_Popularity_Poll#9th_.282012.29I did make some changes like renaming the "Unnamed book-reading youkai" to Tokiko removing UFOs, and Alice's Dolls, and removing the clarifying parentheses from the end of all names. Google searches were done on "touhou " followed by the given name.
Ignoring the the first few winners for being common names that makes the top character, Cirno at number 10 which doesn't surprise me a lot. I havn't had that much exposure to the fandom but at the last convention I went to, the room wasn't making jokes about Reimu's inability to count. Next come Marisa, Flandre, Eirin, Remilia, Elis (yeah, ok), Yukari, Alice, Reisen (too, not the original), and Miko... and then Reimu.
Some things do concern me about the test. Mainly that the first or common name of a character reveals higher search results then the full name, which is why "Reisen" is more popular then "Reisen Udongein Inaba". A cursory test also showed "touhou reimu" to be more popular then "touhou reimu hakure" and "touhou cirno". "Eiki Shiki, Yamaxanadu" also gave me some trouble and after verifying it manually I found the result to be lower then what the program thought, which makes me wonder what the program found. The comma might have been an issue here. In any case I switched out my manual number since that's what I wanted it to search. Also the last time I tried this I think I failed miserably, judging My Little Pony shippings.
I've been thinking of trying a similar test on Danbooru but then I would have to convert names and make sure they actually work, and that sounds like a lot of work. The point of this is kinda for me to do as little manual work as possible. Otherwise I may try searching for first names only, and cutting out minor characters. Other suggestions would also be taken into consideration.
https://docs.google.com/spreadsheet/ccc?key=0Andq4bIa7CW8dHE0ZkRseDlmNkpNMTRMRVVIMHhhcmc