In order of greatness. The Hebie. Strong and stable as can be last for ever, hard to get in the USA. It weighs a ton but is unlikely to ever break and I am pretty sure that replacing the spring is easy. Not only does this hold the bike upright under nearly any load but the pedals turn which makes routine maintenance a snap.
Pletscher's two legged. Nice but unlike the Hebie you can not spin the pedals while the legs are down. Plus the legs fold up to fit on one side of the bike. I added the rubber feet. The mechanism can wear out and it isn't nearly as tough as the Hebie.
The above are my current kickstands. I used to have a M Wave. It is designed after the Hebie but is considerable less stout although inexpensive and very good value for the money.
Then there is the Civia. This was unstable and did was designed so that the leg rubbed the chain. I lost at one of the original feet and two replacements. On the whole a rotten little item in terms of practicality. It is, however, the most aesthetically pleasing of all the kickstands.