Degustacje, degustacje, degustacje! - Comparing Karambit Finishes by Appearance Instead of Price Predictions

I am trying to decide between a Karambit Doppler, Tiger Tooth, and Marble Fade, but most conversations turn into arguments about which one will become more expensive. That is not what I need from this purchase. I want a knife that looks good beside my existing loadout and that I will still enjoy after the novelty fades. Screenshots make the decision harder because every seller seems to use different lighting. How would you compare the three fairly? I would like a method that helps me explain my preference rather than choosing whichever listing has the most dramatic presentation.