I went back to flying in Wii Sports Resort, which I abandoned after a few hours originally. Collected all the locations and a couple more stamps. Some impressions.
Cons:
The textures look awful to see after PWR.
The sunset flight looks pukey after the beauty of lighting and shading in PWR.
The jerk-to-boost mechanic is just as dumb and just as precision-killing as it ever was. I still don't like not having speed control. I hate the boosts.
Pros:
I really like the way the Wiimore+Motionplus works compared to the add-on. It was much less unpleasant. I was surprised at how much precision and agility was possible whenever unwanted boosts weren't killing me. The plane, I think, felt better to fly than the stock plane in PWR.
The location-specific sounds (except for the morse code at the lighthouse, geeez) are much missed in PWR. (BTW, the bad Mario player was in WSR, too.)
There are people! They look at your plane! Whoa!
The whole island complex felt much more alive in WSR, and really highlighted how creepy it is to have a dead island in PWR, with only one other pilot and a whale as living beings.
Some of the art is just plain better. The meteors at night in WSR make night in PWR seem boring and static.
Draw distances seem better. Sure, there's less to collect, but sudden pop-in for location rings isn't nearly as bad an issue.
Having the guns in free-flight mode would be a lot more fun for balloon collecting.
Dunno:
The plane mechanics are much more realistic in some ways. (I mean, for a game where you jerk the wiimore to boost.) If you slow down, you fall. (Still no realistic momentum.) And the plane felt much more like a plane than like a spaceship in a gravity-free vacuum like it does in PWR. This makes for a more satisfying experience sometimes, but the plane mechanics work very well in mission mode in PWR, so it's kind of a wash.
Conclusion:
I hope if they do another game, they do more to make the location (not Wuhu) seem more living and less creepily still. And please let me have my throttle back on my plane.