Pompom3

I am planning on some midweek Honshu skiing in late Feb and need advice on where to go, has to be reachable by train. I have considered Appi, Zao, Nozawa and Yuzawa just for ease of access, but I'm concerned that individually these resorts might not have a full 3 days worth of skiing for an intermediate/ advanced skier. Where would you suggest, bearing in mind that I just want to ski, not to see monkeys ( done that) or bathe in onsen or do anything else.