I dented up a couple of my Cobra 2208 motors the other day, so I’ve been doing some research to see what’s new. ReadError has done an amazing amount of work to test a great range of miniquad motors. If you’re looking for motors for your miniquad, you really should take a look here:
His overall summary page has some great info too:
UPDATE: There are several other new sites with good test data. My favorite right now is http://miniquadtestbench.com. They look to have solid test methodology (at least to the level that matters in multirotors) and do a great job testing products that people care about. Their site includes both ESC and motor test results.