Most examples I see, and certainly all my own work, features straight-line vertical noodles where possible. I generally try to have the "main" flow go in a straight line down the screen, with other things off to the sides, myself.
But snap-to-grid snaps the SIDES of nodes to the grid, meaning noodles will never be straight and vertical. Sigh. I guess we have to be satisfied with wet noodles.
I'd love to see an option to snap the CENTER of nodes (or perhaps the nearest input/output of a node) to the grid.