Which company offers a better iPhone 3GS deal? Vodafone or Telecom?

Telecom and Vodafone are entering a scrap over iPhone.

Telecom is offering buyers of the third-generation iPhone, the 3GS, a $600 account credit and 240MB of free data for two years if they connect to its new XT mobile data network.

But Vodafone spokesman Paul Brislen slammed the plan, saying that Vodafone data packages represent better value.

Which company offers a better iPhone 3GS deal? Vodafone or Telecom?