I currently have Citi Platinum Level VISA Signature and called in to enquire about the change to MasterCard. Since I already have 4 other Citi MC's I really don't need another. I was wondering if anyone has converted from AA VISA to the Hilton Honors VISA. I would like to have a Citi card with the VISA brand. Costco being one of the reasons. Has anyone had success going from Citi VISA to a different program Citi VISA? Also does Citi offer a VISA in any other rewards program besides Hilton?