Post-production – DXO verses Luminar / Skylum replace Lightroom 6

I do not want to upgrade to Lightroom CC with a monthly subscription. I am not a professional photographer, but have been a photographer for 35 years. and a longtime user of Lightroom for editing. My favorite camera is Canon.
I checked DXO and Luminar / Skylum for my main editing software. I've used quite a few Nik software plugins in Lightroom.
Which program do you think is better and why?