If you're staying at Hilton hotels all the time and you plan to continue then I think you should definitely get the Surpass card.

In addition to what skimple has already said, you'll also get 500 points for each reservation you make through Hilton.com with your Surpass card.

You'll also be able to use the AXON7 award that lets you redeem 4 nights at a Cat 7 hotel for only 145K points instead of 200K.