I agree with most of the comments above!
Seriously now, for the type of terrain I like (off-piste, trees, little drops, etc) I think Louise has more of it.
There are some killer runs off pretty much every chair. If one side is bare, the other might have a foot and a half of fresh.
When Louise' park is good, it's GOOD. It has the best designed jumps I've ever been on. A small/medium line to build confidence, a large line, and an extra large line. All of them well built so as long as you carry enough speed you're safe.
The only problem I have with Louise is the rocks. It's a board eater. If it were my primary hill I'd be riding used $150 boards all the time. The best runs are usually found after passing through/over/around some rocks.
If you do get a LL pass next year, we can meet up after a good dump and I'll show you my favourite spots. I can find fresh powder weeks after a dump!
Edit: I was in Toronto for a week, then spend over a week in St Maarten soaking up the sun! That's why I've been silent lately. I'm also rebuilding a '77 Celica GT coupe with a '90 Toyota Supra Engine. Had a bad winter here so had to find other things to do!