On my Sport Utility Bike (SUB) I use a Greenfield Stabilizer. I believe this is the best way to prop a bike up. For one thing you can back the bike up and not have the cranks lock into it.
Stabilizer ®
Rear Mount Kickstand
Stabilizer is great for off-road or mountain bikes. It comes complete with an extra wide rubber foot for superior stability, and won't interfere with pedal action or rear derailleur cables. This is the stand of choice by law enforcement bike patrols throughout the U.S. Fits tube sizes up to 7/8" in diameter. Stabilizer also features: Certified Non-Corrosive Casting, Dual Spring Pressure Plate, Snap Action Mechanism, Hardened Steel Pivot Pin,and Calibrated Stem. Weight: 340 grams
http://www.greenfieldny.com/chart_bicycle.htm
About $15 from well supplied bike shops or on-line.