1. Your Favourite character
Youmu!  She's mai waifu and I love her more than anyone :>

2. Your least favorite character
Seija a SHIT.  Literally worst 2hu of all time.  0/10, would bully.

3. Your Favourite Touhou Game
Lotus Land Story.  Objectively it's not very good but it has a certain charm to it and it was really fun to route it.  I think PCB is the best Touhou though, it's just incredible in every way and I feel like it has almost no flaws.

4. Least Favourite Touhou Game
HRtP.  I just don't like it.  SoEW is probably the worst of the series and is a pretty bad game overall, but I don't dislike it as much as HRtP

5. Character you believe is most powerful
Not a clue.  From doujins and stuff Yukari seems pretty good at manipulating people so maybe her?  Or maybe one of the onis if we just mean physical strength.  I don't really pay much attention to Touhou lore and there's a lot of different types of "power" so this is a really hard question for me.

6. Favourite Theme (Stage and Boss)
Stage - I'm not sure, I don't really remember most of them too well.  I'll be weird and say Oriental Magician from HRtP because it's really good.  HRtP really nailed it with the music. https://www.youtube.com/watch?v=enKZ7FD81wI
Boss - This one's really hard.  Probably Kagerou's.

7. Favourite Stage
PCB Stage 4.  I want to say LLS Extra but I'll stick with PCB 4.

8. Favourite group of characters (eg Eientei, SDM, Moriya Shrine etc)
Youmu is shown to split herself into several clones in the fighting games, so her.  She should be allowed to qualify as a group.  If not, then maybe the Chireiden crew.  The Komeijis are super cute (Koishi especially!) and Orin/Okuu are pretty good too.