1-6 are my favorites I use Vray, Arnold and Redshift as main renderers. recently started Renderman. I use keyshot as well (sometimes for realtime rendering in Siemens NX). Redshift is the fastest one (faster than octane). great for cartoon and motion graphics. Arnold is the most realistic one, even better than Renderman. but in most cases I need a biased renderer to set everything myself. this is impossible in an unbiased renderer like Arnold. VRay is the best for architectural, interior, car and product renderings. because it's developed for them. of course, for jewellery I prefer Arnold.
