Jabra Cruiser or Blackberry VM 605

Hello all, I'm looking to buy a couple of bluetooth speakerphones for our 2 vehicles. I'm going to get either the Jabra cruiser or BB vm 605. I can get them both for pretty much the same price. I've got a storm 9530(will be a BB Touch as soon as I can get my hands on one) and my wife has a curve 3G 9300.

These will only be used for the phone capability so I'm not worried about playing music or FM or anything else.

Which one has better call quality? Which one lasts longer per charge? WHich one should I get?

Thanks, John.