Bang for the buck I am with the Feedback stand. I have used two of them (own one) and a number of Park stands from the super solid shop pro models to the smaller cheaper price point. Park makes the best stand if you are going to drop the cash and get a top of the line one, the clamp and other parts are made to be used in a shop day in and day out.
One thing I have gotten used to with the Feedback stand is the height I can have my bike at when working on it. Similarly priced Park and others have lower max heights.
The Feedback "clamp" system has proven solid but is not the best design. To hold a bike inverted let's say, you really have to crank the thing down or it may slip a little. Cheers!