Replying to Best time of year to take a trip out to CO?

So looking for a little help here! My friends and myself (juniors and seniors in HS) are trying to plan a week long trip out to a resort in CO..most likely Breck as of now. Whens the best time of the year to go for some major freshies as well as when the parks will be at their peak in quality?

Our breaks are very limited this year unfortunately, so as of now, its looking like early-mid march is going to be the time frame of when we'll be taking the trip...

(never been our west, or even out of PA for that matter, so thats why im coming to you guys for some help cause i have no idea)

Thanks a ton!