"To each his own, I guess. LR6 is much faster than DPP3 and DPP4 for most tasks."
Absolutely! But no matter how much some die hard's brag on DPP whatever number, it is no Photoshop. Not in the same solar system. I know of no professional shop that uses DPP in lieu of PS and/or LR. None.
Thousands of images is where LR shines. Get me a break, please. And we haven't mentioned Bridge yet for PS.
"To each his own, I guess." Is the only plausible response to this debate.