Good question there from LakeWashington. Find out whether or not you are guaranteed that co-op. Where you can work will be restricted by your student visa. Also, ask Drexel what you would need to do in order to keep that scholarship in future years.
You can use this calculator to compare costs: http://www.finaid.org/calculators/awardletteradvanced.phtml For your major, it is OK to choose the cheaper place.
Ignore what you read here about Drexel being “not very good”. Most of those comments are written by people who are still applying to college themselves. Grown ups would tell you that Drexel is a fine educational institution, and that you can get a good education there.