Denver is a good choice in the long run, but if you were to get offered UAL, you likely would not want to be there for a year when you first get hired. Commuting to reserve is terrible. If there is service to SFO or LAX, that would be a better a QOL. If your QOL is measured by days off at home, then you probably shouldn’t even consider a legacy. With the commutes, you’ll always be gone a lot regardless and dropping trips isn’t as easy.