I'm Hilton loyal and use to stay in SD frequently before we moved nearby. As suggest the DT on Front street is a non-starter. We like either the Hilton Gaslamp, Hilton Bay Side, or Embassy Suites; in that order. The Hilton on Mission Island isn't bad, but no place nearby to walk to except a couple of fair places to eat. The Residence Inn is OK, but not much around to walk to.