The fact that Culvers has a vetting of franchise owners (well known) as opposed to the 5 guys "you gotta cash we gotta franchise for you" attitude says it all.
Culver's is NOT my favorite, but I know when I go into one what I can expect from service, I might meet the manager/future owner/etc. cleaning my table. Different from the McD's world that is standard at everything, Culver's looks for people and approves them - expecting them to follow through. Not sure that I said it correctly, but I like the Culver's attitude over the McD's.