I always go 4. Feels like Starcraft to me, using as many fingers as I can. I find it's too much of a pain to switch e and r every time. I main noct as well, so forgetting to switch r to e when banking could mean a wasted ult.
Come follow me.. Come follow me... Give the wheel a spin, maybe you'll be lucky enough to find the secret yourself. Plunge... into the dusk; and into your soul.