I'll note that skiers seem have a much easier time learning to handle difficult terrain/higher typical skill cap in that area.

I don't see many boarders who can handle mogul fields without looking miserable. Likewise, when you've got some vertical ice skating going on a double diamond, the skiers usually have a much easier time maintaining control (two edges and all that).

I'll also note that a flat traverse is way more miserable for a boarder, skiers can "skate" along.

All depends on what you want to do any your interests.

Either way, it's a great hobby.