Based on your first sentence that she feels she won’t fit in at Colgate, I’d take it off the table. The clock is ticking. Students can agonize forever on the pros and cons and at some point they just need to be ruthless and eliminate. Forget Colgate.
I don’t think either Wes or Vassar are crunchy granola, but there are possibly a few more of those types at Vassar.
Read this current thread on Wes and Vassar.