my dog, my horse, and me are all hyper pains in the butt

I would definitely pick one that fits your personality as well. I got mine four years ago, pick the most stubborn, bull headed dog in the litter. He didn't dissapoint me, constantly pushed his limits, tested how tough I was willing to be on him, and eventually settled into a good routine. Took a little longer to train him than I think it should have, but then again, it was definitely worth it. Now we get along great with no aggravation between us!

Find the most dominant dog and the runt. Take both out of your selection. Not to say these are bad dogs. I've seen litter runts that end up absolute champions. The dominant dog in the right hands can be a killer team. For the average dog owner, neither would be the best choice.

Take what is left (with your sex preference) and do whatever you want. I really like the idea of letting the wife or kids pick it out.

If you've done your homework and have chosen a breeder that produces the type of dog you like, you will end up with the dog you want.

Like the others said find the best pedigree. Pick the breeder's brain about the pups to find the right match for you. The reason I say that. That laided back pup you just picked up may be hell on wheels and just tired from bouncing off the walls the last few hours right before you arrived.