I took CV then CP. Like +Esaias Pech
mentioned, CV is much more math heavy, while CP is more "applied" heavy (for lack of better word). I enjoyed both classes, but personally preferred CV since I like knowing the details of the math. Both are great classes though!
I took CV with ML in my first semester. I came out thinking, "should have listened to Mimi and taken only one class". CV alone is more than enough work. That way you'll have time to really learn properly.
As for exams, CP had an open book exam which you can take twice. CV was a non-proctored exam and open book. A study guide is given prior. With the change of instructor this might change, and who knows, maybe CV exam style will be more like CP?