The cap quality on that photo of the V80 don't look great, but I didn't have any complaints about the ones I had on my V60 (admittedly it was only for 5 minutes, but still) and the backlight quality is really good. Like, really good. Has pulse modes, easy to change the colour, lots of brightness settings, and the colour is really vivid.
But going up against a Ducky, it probably loses in every category. So I would say go for the Ducky.