Mad River "Mountain" in Ohio, hands down. I'll still go to get time on snow, but it's basically an overpriced glorified sled riding hill with chair lifts. Jerries.... Drunk Jerries everywhere.
Holiday Valley is decent for proximity to me, but I agree their staff are a buncha dicks. Last year after a good snowfall, I was hoping to ski the wall since it woulda been prime conditions and it's usually a sheet of ice and you can't do much other than straight line it if it's icy. It was closed. When I asked an employee why, the response was "concern for avalanches" I kid you not. Apparently this happened once, but by the looks of the photos the snow detached all the way down to the grass, so technically that could happen anytime.
Holiday Valley also bans "inversions" per their website. I'll pay $100 to the first person to do a backflip in front of a yellow jacket and get the whole confrontation on camera.