Paper vs. electronic. Either is fine. Mine have always been paper, and always will be. I log leg-by-leg, so when I showed up I had 7 logbooks, and it wound up leading to a nice conversation on then-vs-now, and the merits to each. I could tell that the pilot on the panel was impressed. Did it factor into me getting the job? Dunno. Doesn't matter.

The airlines don't care as long as what you present is believable, and if it's handwritten, that it's neat and readable.