I hope that some US Wii owners have picked it up and can answer to the question in subject.

I know, it's We Ski not Wee Ski, but I'm too used with adding two "i" after the "W" so I did the same with "e" :D

Lets see, a minigame or a game?

IGN says the 3 minigames in WiiFit are better than the whole of We Ski.

Kind of like WiiSports all over again. Bowling and Tennis are still implemented the best there.

http://wii.ign.com/articles/875/875571p1.html
Nintendo Voice Chat Podcast, Episode 10

Says Wii ski , the mountain is small and does not detect front and back movement (for speed).

They say the mini ski games in wii fit are better then wee ski.

A Nintendo minigame wins or a shovelware title?

Sounds like the minigame... balance board is optional on the game. Amazon has it at 4.5 with 5 votes so far, so it's probably not that bad (but I don't trust amazon without at least 20 votes) and metacritic has it at 66 so it's not extre shovelware.

I'll wait until I hear some VGC users compare the 2. I trust game reviewers like I trust orcs... only when they're dead.