I use a tiny stitch because I use modern strip piecing methods and am often cutting through seams. I typically use a size 10 needle to piece, and my stitch length is 1.8-1.9. With my current round of vision issues, I can't really see the stitches and either have to learn to live with the mistakes or do them over with fresh cloth, taking out isn't an option.
I think most machines default at 2? That's ok especially with a size 12 needle. One of my friends used to dial her stitch length up "so it would be easier to take out" but that meant that basically ever end of every seam became loose or lost a couple of stitches, so instead of helping to deal with potential problems she created problems for herself.