Picking out the right microphone for your camera can be difficult. I’ve worked with a bunch of different mics in the past and I’ve found favorites but I feel some what subjective about it. Chad Johnson posted a great shoot out between the Rode VideoMic pro, Rode VideoMic, Que Audio Micro Shotgun and the Sennheiser MKE400. I suggest watching the video with headphones on or a nice set of speakers to get the full effect.
I was pretty impressed by the stack of mics on his rig. We’ve always had good luck with Sennheiser, so it was nice to watch it compete against the others.
For more info check out Planet5D. They have some great insight on 3 of the 4 mics.