[19:47] <Helepolis> Also nobody beats Tewi
[19:47] <Helepolis> Tewi must be the most fucking annoying hardest midboss ever in entire Touhou
[19:47] <Helepolis> or am I wrong
[19:48] <Anthony> momiji
[19:48] <Helepolis> I think Tewi is even more of a bitch
[19:48] <Helepolis> but Momiji is also hard
[19:48] <Baity> tewi is barely manageable because her attack has bullets crossing over
[19:48] <Baity> coupled with that aimed burst, that first attack is quite dangerous
To add to what I said previously,
only Tewi's first attack contains this brutal nature. So when comparing Momiji and Tewi, it'd simply be between Tewi's first, and Momiji's... just Momiji. At this point in time (i.e. several minutes of trial attempts), I would say that Tewi is harder. Despite the fact that Momiji's attack has crossing-over elements as well
and is more dense than Tewi's. While dying on the second attack does happen on occasion, it's not really notable in this argument (for me, anyway).
This however, is bias to me not regularly playing IN, and I've forgotten how do to everything but sight-readables.