Which carries more weight in selecting a college: graduation rate or avg cost of attending?

If I were a parent of a child attending a LAC, with or without cost concerns, I would be more apt to steer my child to the best 4 year graduation rate. If cost is a concern, sometimes a 6 yr degree at a lower cost School is equal to the cost of a 4 yr degree at a costlier Liberal Arts College. If cost is a concern , stick with instate schools or if your income meets the standard for full University Aid, go for the best University that your child might be accepted at that has the most guaranteed tuition assistance and the best 4 yr graduation rate.