I have 2 danielson and 2 protoco. From what I kind tell in just one year of using them, the protoco's are definately going to last longer. The danielsons are designed just like they are priced - cheap. That being said they do work. although you do have to do a little extra rigging to them. I put pencil lead on the trap doors to make sure they swing shut, a little rebar on the bottom so they always lay down nice when put in, and ziptied a bait cage on the inside. Once you put in the bait cage, then they are no longer collapsable (at least not all the way). I've found your better off not collapsing each time anyway (things loosen up too much). I have 3 of the sides ziptied to the top piece so they can't move, and I leave one side alone so I can pop the trap open. Make sure the bait cage door faces the side you plan on opening.
One trip out I thought the protoco were producing more, but that trend didn't continue. I think its more placement/bait than anything.
Make sure you make your floats look unique. The std yellow or orange will cause plenty of frustation.
-G16