Gil,
I think that responding by restating your own school's strengths is the best way to go. I'm not sure I'd go into mentioning "unethical practices" with a prospective student. Their thought may be why you would even need to mention it?!
Talking about your own strengths, what makes your school or programs unique, sharing the School Performance Fact Sheets that show how job placement and/or retention is for your program is the best way to go.
Donna Guisado
