F
My concern is not I-70 for Thanksgiving.
From Colorado Springs the concern is I-25 on a workday (yes a lot of people still work and commute Black Friday).
CS has TWO viable routes to Breck/Frisco/Copper and they have a marginally different commute time, but I-25 and then through Denver has significantly higher downside risk weekday, weekend, or holiday.
An overwhelming group of folks in CS who ski primarily Copper and Breck do not take I-25 and 70, because the back route via US-24 is more scenic and runs into far fewer traffic problems.