gwp or gsp
This is my opinion / experience.
SHORTHAIRS were much easier to train to point and hold point, but not very reliable with retrieves. They also seem to cover the area better and a little slower paced (but still hunted hard). Upland game only, no waterfowl, they don't do well in the cold.
WIREHAIRS to me are an entirely different animal. I have a 3yr old male and have been having quite a time training him. He used to hold point very well but as of last November won't hold for nothing. I've got some serious work to do with him. He does retrieve very well to hand and won't let go until I say to. He is a very aggressive hunter, he goes and goes and is not afraid of water, thick cover.... nothing. I've been told that wirehairs are aggressive towards other dogs, cats, kids, etc. Well my wirehair is a whimp, my kids play with him almost every day and he's never even growled at my kids. The coat of a wirehair sucks! It's a burr magnet, buy a good burr comb. I hope this helps.