Surprised there are so many other Touhou friends here. Not that I'm complaining.
>Fav shipWriggle x Kazami is good. I like the bug/flower theme. I'm also partial to Patchouli x Marisa. I like the idea of Marisa's book thievery turning into longer visits, then that turning into friendship, and of course feelings. Patchouli being the crushing one is cute. Lastly Sakuya x Remilia has the adorable master/servant dynamic.
>Fav gameUFO! I love the theme. It's too hard for me to beat past normal, but I still have the most fun playing it.
Shout out to Phantasmagoria of Dim.Dream for the interesting competitive mechanics, I'd love a modern multiplayer version.
>How many did you playI own all but the newest one. Big fan, not great at them, but I've beaten most on normal.
>Fav songProbably Phantom Ensemble overall, I think it's overlooked. U.N Owen is overplayed but still a fantastic track, and Emotional Skyscraper is one of the best final boss themes in the series
>Fav remix of songAdieu, to this Lively Graveyard
https://www.youtube.com/watch?v=BgQ8sa0HPtQAlso nostalgic for IOSYS, specifically fond of Marisa Stole the Precious Thing and Stops at the affected Area and immediately Dissolves
https://www.youtube.com/watch?v=Kc8GNaED3Ok
>Fav girlWriggle Nightbug! I love bugs and I love capes. Not much more to it if I'm being honest. Runner ups are Nitori (love the greedy shopkeeper interpretation), Kazami (Yandere flower lady), Aya (love news reporter characters), and lastly Parsee who I think is severely under utilized by the fandom.
>Who would be cute genderswappedAll of them! Remilia being a shota vampire hits pretty high on my list though. I'd also love to see more genderbend art of Hoshiguma strong oni boy seems like a cute idea.
>Genderswap ideasPersonally wish Wriggle hand more Rule63 that wasn't just for ero doujins. Though on the opposite end of the spectrum you have picrel that is literally just the same as her canon design.