Try not to go on the weekends. Stay off i-70 when the mountain closes if you can at all cost. Gets packed full of people. If the weather is fair February is pretty good. I've been snowed in and couldn't find a place to stay because everything was booked before. march is great conditions when the sun is out and it's not to hot.
If I was traveling across the country I think Breck would be one of the last mountains I'd pick but thats just me. Watch out for all the flat spots and try not to get yelled at for going to fast like I do EVERY time I fucking go there. They have nice rollers on all the lower runs but then they yell at you for hitting em And if you like trees, forget it. They are pretty much all roped off.
Been to Breck a few times (I've always had the RM super pass or I've worked at Loveland), but this'll be the first year I'll have the CO pass. I agree with all this Breck talk, but how much of it applies to a Wed or Thurs? I'll be off one of those two days from my main job. The last few seasons, those days at Copper/WP were awesome, never crowded-