I test rode the two bikes and felt that the 7200 rode and shifted vastly better than the 7100 and a relatively minor price differential. That being said me and my gf preferred the Giant Cypress (standard or DX comparables) in everyway and at similar price points.
There is a substantial difference in ride quality between the 7xxx and 7xxxfx as well as Giant Cypress and Giant FCRs. Former are comfortable true hybrids with suspension forks and meatier tires while latter are really road bikes with upright handlebars.