Newbie Question

I'm considering purchasing either DXO Optics Pro or Capture One Pro as my RAW converter. I using a Canon 1Ds Mark III, by the way, primarily for landscape photography.

I'm looking for all input possible on why going with Capture One Pro is a better decision vs. DXO...?

Or if anyone would just like to give me their simple opinion on Capture One Pro, that would be most appreciated.

Thanks in advance!