Of the ones I can recall.
Minneapolis City Center - upgrd to bi-level suites (about 50:50 on availability)
Minneapolis Airport - routinely upgrd to suite or exec suite
Downtown Chicago - Mich Ave (before moving to Chi), upgrd Pres. Suite once
JW Cancun and Casa Magna - upgrd to suite a couple times each
Ren. Amsterdam - upgrd to suite and welcome gift (ceramic candy jar)