I have a Pletscher folding double-legged kickstand on one of my bikes and a fixed (non-folding) double-legged kickstand on my Dutch Bike.
The Pletscher is much lighter (aluminum) and folds away nicely compared to the bulkier steel fixed type.
The VO Porteur kickstand allows you to adjust the length of the legs. This is key because it allows you to put it on a different bike. With the Pletscher you have to cut it for it to work correctly without lifting one of your wheels.
You may have an issue with wheel flop with these kickstands. I just use a Nite Ize Gear Tie to fix the front wheel to the downtube.