How important are AP classes to the college admissions process?

5/18/2017 5:16:41 PM,
Shannon Brady replied:
One of the top factors in the college admission process is rigor in a student's class schedule.  While some colleges like to see more rigor than others, more selective institutions do look at the transcript and how rigorous the student was (if the high school offers AP classes).

How important are AP classes to the college admissions process?

Does it matter to admissions officers how many AP classes a student takes? ie. is there any real difference in the admissions evaluation process if someone has 4 vs 3 vs 2 or no AP classes on their High School transcripts? 
5/18/2017 5:16:41 PM,
Shannon Brady replied:
One of the top factors in the college admission process is rigor in a student's class schedule.  While some colleges like to see more rigor than others, more selective institutions do look at the transcript and how rigorous the student was (if the high school offers AP classes).