I personally never understood why people favor music with vocals over those without. 90% of the time I'm told because they like the words, has some meaning or another that makes them think they're smart for understanding it (Tool fans are a good example here), can "relate" to them (insert oodles of angst bands like KoRn), or whatever.
But alot of the Touhou music has vocals in Japanese. Now obviously this is normal for the majority of listeners who are Japanese. BUT Why are so many english-speaking fans enamored with vocals in their Touhou music? I just don't get it. Most of the time music with vocals has the music dumbed-down too so that it doesn't drown the vocals out. For example there is an IOSYS song of Yukari, and there is a non-vocal version of it. I rather enjoy listening to it sure, but it definately has plenty of space in there where you think "gee, it's missing some instruments here" because it was really meant to accompany the vocals.
Anyway, in addition, after yet more Touhou music discovery I've came to some more observations:
Remilia really gets around with some kick-ass remixes. My brother who isn't into Tohou at all recognizes a Remilia song finally, and no other because there are so damn many I like.
Flandre, despite having a really cool song imo, has craptacular remixes more often than not. So far the only one I've discovered that I thought was nearly as good as the original is one by DbU.
Patchy has almost no instrumental remixes. They are almost all vocals. what sucks is that I frequently hear really damn good sounding Patchy instrumental songs...in sting songs I think they are called stings anyway. Those songs which are typically long that aren't actually 1 song but like 10-20 seconds of one song, suddenly changing into someone else's song, into another, and another.. like 10-50 different songs all mashed up so that they play consequtively without any jarring sounds, but otherwise don't really compliment each other, or go back to previous songs after passing it. UGH
Alice has some decent music, but her stage music really seems to get around and be good. alot of it is techno/electronic or whatever, which I normally don't care for as much BUT hers tends to be good anyway.
Phantom ensemble seem to generate remixes as if there really were 3 of them. They all seem decent, but none really struck me as outstanding. Most are too repetative for my tastes, even the one by S.S.H (who omgwtfpwns).
Youmou doesn't seem to get much love, oh well. Yuyuko's songs are pretty much always win like Remilia's, but not as numerous (though still fairly numerous). Yukari has a remarkably average number of remixes both good and bad that I've seen, which is fairly dissapointing since I like her track. That 7-tailed fox lady, I forget her name at this moment, she tends to share music with Yukari so ditto.
Eirin and Kaguya, despite having some super excellent music, have hardly ANY remixes at all!!! It's just not fair! whyyyyyy. So far my fave Eirin remix
http://www.youtube.com/watch?v=E_H8H1RfCbs album: (Touhou Maboroshi Soumatsu Ten 2 "Canon"), haven't found any other good ones yet. Similar story for Kaguya, whose original song is definately one of my top 3 faves. Her best is S.S.H's remix IMO.
http://www.youtube.com/watch?v=osM2rRzYdocThat was uploaded super recently too, nice. I had to hear it from Nico before.
Final boss in the split-screen touhou game has alot of good electronic/technoish remixes as well, I forget how to spell her name "sheikiehiek-Idunno".
Aya...Ugh, I don't like her song much, nor do I like her remixes. But FFS she is the only character who gets around (music wise) more than the phantom ensemble! ARRGHAGHASGASHFDH!!!!! WHYYYYYYY, Sanae seems to be pretty damn under-rated depite having an otherwise cool original track imo, but not nearly as bad as Eirin or Kaguya. Kanako's remixes are automatic awsome. Not as numerous as Remilia's but they are just about always 11 out of 10, while Remi's tends to be 8+ (though she has a couple outstanding ones as well).
Not going to go into SA/UFO so much yet since the majority of music I've discovered pre-dates both, so I can't say much regarding em.
In short:
GJ Remilia, Kokoro
STFU Aya (not that I hate the character, just sick of hearing her music)
WTB Moar Flandre, Eirin, Kaguya, Patchy, Sanae.
Oh yeah, and so far the character with the least love so far is Rumia. She's been around for a very long time, and I've only heard 1 remix of hers so far...which surprisingly wasn't bad. Maybe that's just nostalgia talking since she was my first Touhou boss.
edit: say I've just discovered the uploaderer of the SSH Kaguya remix, that guy has some good stuff >=P