Know 3 guys that have fished the white. All 3 said "never again".
I'll offer up my 2¢...
For beauty and quality trout, New Zealand would be hard to beat.
In Montana, you can fish a spring creek, a freestone and a tailwater back to back to back. Good hatches, good numbers of quality fish.
Pacific NW if you're into swingy dingy chrome dome action.
The keys offers a variety of saltwater angling.
Big brookies would have to be Labrador hands down.
What's disturbing is that nobody has mentioned Penns... yet