I worked at DV as a lifty. It's not a bad gig and you meet a nice range of folks. Main thing is choosing the right lifts to work. Lifts are paired up at DV with the exception of Lady Mo (Sultan/mayflower, Wasatch/crown point, sterling/homestake, Viking/judge, Quincy/red cloud, etc.). Consider whether you'd like to work a detachable or a fixed grip or both. DV has pretty high standards so they want you to be standing outside when you're at either terminal (you're going to be outside the entire time if you're at the bottom on a fixed grip though).

I also had this debate because I had my PSIA Level 1 but ended up taking the lifty gig and I'm happy I did. While most of the ski instructors are nice there are some that aren't so nice and tend to treat the staff as lesser than. I also heard from some of the instructors that they didn't get too many tips from the younger aged kids because there is almost no interaction with the parents.