I think the toughest part of this identifying what end of the intermediate spectrum you want. Of course the general rule of thumb applies - the further you go from the base area, the less crowds you'll find. At Copper you can never be further than one lift ride from the base, so I would plan on eating a late lunch. The same may be true for Winter Park.
At Copper I'd suggest the following:
- Anything off the Superbee lift</font>
- If that's too hard, anything off the Rendezvous lift.</font>
- Timberline Express early in the morning</font>
- Excelerator early in the morning</font>
The busiest lifts at Copper will be American Eagle and American Flyer. In general, I'd suggest starting your day by going up American Flyer. Take the "American Flyer" run as a warm-up and ski Timberline Express until the crowds start showing up. Traverse from the top of Timberline Express all the way across to the bottom of Rendezvous. Find some untouched powder in this area (it's almost always there) and then ski all the way down to the bottom of Superbee. You may end up at the bottom of American Eagle. Ski Superbee the rest of the day.