Best microphone? Sony ECM-MS907 or Sony ECM 717

 Hi,

 I'm thinking of getting either one of these microphones for my Canon Digital 
Camcorder.
It will be used for recording live bands in clubs and concerts so I'm looking for 
something 
that will record extra loud sounds.  Any opinions on which one is better for the job?

 I've tried looking myself for reviews on websites but sometimes they say one is 
better than
the other and vice-versa so I'm hoping I can find someone on here with actual hands on 
experience.  

Thanks