Both floating/sinking lures are effective, as to one being more successful it would depend on your target species; but for YTK the floating lure is very popular when the fish are active on the surface making it a good lure to have. Many would simply jig for YTK if they are not responding to your lures.

The treble hook is balanced in its design, the three hook points are very stable and hydro-dynamically friendly. Have a look how the hook rests on the belly of the lure... one point down acting as a keel, and a hook point either side of the lure balancing the hook out. Now when it come to lure design the weight and position of the hook become important, and also the coverage or exposure. Some lures rely on the treble hook to effectively "keel" the lure and provide what is called righting moments, this is where the body of the lure rolls out and is then "righted" by the keel effect of the hook, this effect can also be built into the lure or not depending on design. If the lure does not "right" itself it rolls out and will spin; so if the design of the lure was built around the hook, its position, weight and balance changing it can throw the lure off. This is the basics of how a lure "swims"... Well it doesn't swim it sheds water pressure, so how it sheds this pressure creates the "action" but we need to control/create this action and sometimes it is done by using specified hooks/sizes to get the correct lure attitude.