I'm curious if the stats on things like dark brotherhood armor or archmage robes are different depending on what level you get them. Anybody know?

Robes are not but some of the armor is (enchants, not armor value) and weapon damage ranges and enchants are.

Some scale (at least according to the guide), but what'd be useful to know (which the guide doesnt say) is at what levels they scale. Nightingale armor for example is scaled, unfortunately. I'll grind to level 30+ before getting it just to be safe, unless someone has the answer?