Bitmovin's comparison: https://bitmovin.com/av1-multi-codec-dash-dataset/

MSU's comparison: http://www.streamingmedia.com/Articles/News/Online-Video-New...

x265 complained about the recent MSU test: http://www.x265.org/x265-incorrectly-represented-msus-2017-c...

But equally x265 likes to refer to MSU comparisons when the results make x265 look good: http://www.x265.org/

An x265 post referencing another paper which says HEVC outperforms AV1. The post insinuates AV1 might not be royalty-free. Reads like an attempt to spread fear, uncertainty, and doubt: http://www.x265.org/excited-av1-closing-doors/