Your kidding me, I'd much rather fight marisa over reimu and her evil borders and nasty nonspells. Also marisa's theme and danmaku patterns are more awesome.
This comes up quite a bit. The difference between Marisa and Reimu in Stage 4 of Imperishable Night is the difference between micrododging and streaming. I can stream like it's an Olympic event, but micrododging just murders me. I'll take Reimu every time over Marisa's ridiculous cascade of tiny tiny spinning stars.
I have wondered what these definitions mean, so streaming would be run away from the evil thing coming at you, and micrododging as it suggests just slowly nudging around through gaps, right? (this is probably on the wiki, isn't it?)