this debate has been hashed, rehashed and cornbeefhashed to death.
....snip....
there is no question whatsoever that sidestand is more secure than c-stand.
IMO, there's no question it's a personal observation...I would argue the more secure aspect. In my situation, using non-inch size tires definitely reduced the lean angle of an Airhead on the sidestand. You get one of them more vertical, a puff of wind will blow the bike over self-retracting sidestand or not.