If you have any misgivings about a lab then by all means don't get one-the GSP's, the GWP's are great dogs. If you are hunting upland game primarily you probably wouldn't go wrong with any of them that you mentioned. A great place to go and see is at a field event. There you can see each type in action AND talk to the owner's and trainers. A great way to find what you are interested in and to meet people that can help you with training as you progress.