Which distributor is the best when it comes to 4K?

[jFug]

I know this may devolve into a "quality v. quantity" argument but, nonetheless, which distributor(s) do you think are the best when it comes to 4K Blu Ray releases?

Personally, I'm going with both Warner Bros. and Lionsgate. Both of these distributors have put A LOT out on the format and I can't really complain about the quality of the discs they are putting out.

I may be a little biased because I am a huge DC fan, but both Warner and Lionsgate have pretty large 4K libraries and it seems a new release is announced pretty frequently by both these distributors.