Originally Posted by
Boraxo
...I just booked 4 non-stops on the same LAX-LHR-LAX flights in C for peak summer season in 2016. ^ For only 100k per RT.

Try that on UA.
Considering that it's fall 2015 right now, this is "wAAy early" in my book.
Obviously, each program has its strengths and weaknesses. I'll wait for the official announcement to re-evaluate my travel allegiances (right now they have shifted to mainly AA and only UA when the fare earns more miles), but IMO MP is still a very attractive program. YMMV, of course.