I think Marisa plays less like the other two than they do like each other, so I’ll definitely need more practice to get to where I can 1cc with her. Her speed is my favourite I think, though; her unfocused speed (and lower point of collection) makes item collection much easier, and her focused speed is still slower than Sakuya for a little better control. Her bombs play much differently, though. MarisaB’s bombs can eat through just about any spell card, but you only get 2 per life, so you can’t use them to save yourself from mistakes or from getting yourself trapped as much.
Good luck with your no bomb runs. I can’t imagine going through EoSD without them.