Onikobe is a smallish resort near the hot spring town of Naruko. 7 dual lifts, nothing high tech. Wide beginner slopes (often packed with people) on the weekends, with narrower more technical sections near the summit. Worth going just for the drive if you live in the area, the view of Naruko dam is nice.
It has a few good tree runs which are usually left untracked all day, and one good sized steepish run which is great for early morning freshies. The full day lift pass is only 3,600 yen including a ticket for 1000 yen worth of food at the resort (using a repeater ticket - given away free, each time you go).
There are also a few gaijin instructors there this season. Give it a