Sweet, may try head for a north weekend at some point. Where is your favorite place to board on the south island?
Treble Cone on a Pow day, Snow park any other day.
Not a big fan of TC to be honest, I worked there last year and got bored of it really quick. They claim to have as much skiable terrain as Whakapapa, which is a bit of a lie because they are counting the inbounds hiking terrain. There's 2 lifts, and it takes hours for them to open the second lift on a powder day, by which time half the town and their out of town familys are up waiting on the only track that access's that side of the mountain. Next thing you know there are elbows and punch's being thrown because these cunts are so depraved of powder and think it gives them god-like powers to ride... After that nonsense is out of the way, you have to wait another day or two for them to open the Motutapu Chutes. But them's the goods. If you're a good rider you can get lines there for a day or two which no one will go near because the entrance to some of them are narrow and vertical. Scope it right and you can traverse all the way back to the lift with minimal to no hiking.
All in all, it's overrated but it's the best you're going to get in the south Island. Powder days up north may only come once or twice a season, but at least when you get a pow day at Ruapehu there's a decent chance of getting a half day and it not being super busy. It seems everyone in Wanaka and the surrounds has an unwritten rule that when its a powder day, you must be up the mountain punching everyone in the face for that one and only run of powder you're going to get that day.
Cardrona is alright but relatively mild terrain - their park is good though, on par or better than Snow Park usually.