Arbor Creek, a newer family suburb, tends to attract buyers quickly when a home is priced to current comparables, since move-in-ready inventory in a growing area does not usually sit long. An overpriced listing there stalls just as fast as anywhere else.
University Heights sits closer to the University of Saskatchewan and Royal University Hospital, which keeps a steady pool of buyers and renters cycling through, but older housing stock can mean a longer sale if updates are needed before a buyer will commit.
The honest answer for either neighbourhood is comparable-specific, not a single average number. Get your hand-reviewed valuation from Joel Dyck.