which one to choose: Uconn/Pitt/UWM/Purdue/VTech

Net price and debt at each?

Most of these start engineering students as first year engineering undeclared, and may have secondary admission to major based on college GPA:

http://talk.qa.collegeconfidential.com/engineering-majors/2174743-first-year-engineering-programs-secondary-admission-to-major-criteria.html

(Not sure about UConn; check with its engineering division directly.)