I hadn't elaborated, but I will share some observations.
MP145: poor fit, great assortment of nozzles and ear tips, feels like quality, boomy and excessive bass even with the silver nozzles, which are my favorite, spectacular mid- and high-range clarity and realism, a sense of soundstage and depth I haven't heard from anything else, very resolving in the mids and highs.
Aether: good fit, feels like plastic, light and comfortable, more balanced tonality, yet there is a shrillness to some frequencies (I usually don't use an equalizer so I haven't identified it yet) and it's a bit too light in bass for me, no impression of soundstage or depth to speak of, instruments not nearly as separated.
I listen to classical music, and I appreciate it when the instruments sound rich and life-like. The MP145 does that well, despite some excessive bass. If you aren't A/B-ing them, the Aether sound great, but back-to-back, it's obvious the MP145 is superior for the above reasons. Andy said the Aether is very tip- and source-dependent, but I doubt there is any combination of variables that can make the Aether a true competitor to the MP145.