Sony Hdr-cx100 Sony HDR-cx100 Or JVC HD300?

Sony HDR-cx100 or JVC HD300? - sony hdr-cx100

I look forward between the two houses and want to know what to buy.
I like skateboarding movie and would like the JVC is the problem is that the hard drive if I drop can be broken!

Sony, the other flash memory and not to worry memory / data loss.

Video quality seems to be the same. (I'm not sure about the audio)

Can someone please send me a comparison or give me a suggestion on which one to get. Thanks