If the price difference is only $300, I'm with Liz and would pick Hilton over Holiday Inn. We have stayed at both and will stay at both again in the future I'm sure. Either way
, you mentioned snorkeling and I wanted to point out there really isn't snorkeling in front of the hotels. You can take the public bus very easily to Arashi beach or Malmok. f you don't want to do a snorkel tour. But for the best snorkeling experience google Aruba Bob snorkeling Aruba and check out that site. Its the best, includes pictures, and it's fun!