I write everything by hand apart from 'actual writing', like essays and presentations, which go straight on the computer, however I do draft sentences and short paragraphs by hand. I have quite neat, quick handwriting so can jot my ideas down as quickly as I think of them and I have always made a lot of notes in classes, my tutors often comment on it, in a good way I think! I always write on journal articles and make notes from book chapters, I think that makes me a slower reader than most other people but it helps me to engage better, especially when it's difficult.
I have to do a lot of reflective writing as well and it's quite personal sometimes, so could never do that on the computer as I would be missing out so much of it, handwriting is far more personal.