Well, it sounds like you've already decided against the Golden.
With that in mind I'll focus on the Shepherd and Collie. They're both loyal dogs, but the average Shepherd does require much less grooming than a Rough Collie does -- keep in mind though that they're nicknamed German Shedders, so if shedding bothers you...
Goldens are actually probably the cuddliest of the three, but that's not to say a Shepherd or Collie wouldn't be. None of them are necessarily in your face all the time unless you get a really driven dog, and even then not necessarily. They all ought to be easy to train and eager to please, and they can all do well being left alone -- I believe, however, Collies and Shelties are more prone to separation anxiety than a Shepherd or Golden though. Kept well-groomed none of them should be too affected by cold weather or heat, though probably the Shepherd and a Golden with proper coat more so than a Rough Collie.
With that sort of weather extreme though I would be careful with the outdoor dog thing -- make sure you do it right, basically.
The only thing that really stuck out, temperament-wise, was your remark about Goldens. Collies can be prone to the same thing, though some less so; Shepherds, generally, can be less inclined to this but it's not a hard, fast rule. This can be more individual in all of these breeds than others, and can also depend on what lines the dog comes from.
Are you planning on getting a dog from a breeder? Rescuing? Adopting more generally?
Since all three, really, could suit what you're looking for it might just come down to speaking to people involved in the breeds and seeing what they have to say. Maybe even spending time with different dogs from each breed to see if you develop more of a preference.
