Without sounding like a smart ass, it will depend on your instructor. Previous experiences before the current course format have no bearing on the current course.
The instructors now must use a powerpoint presentation that mirrors the online and printed student manual. If your instructor just deals with the powerpoint word for word, then there is no advantage.
If your instructor uses the powerpoint presentation as a baseline with additional material, hunting gear and practical examples, then it there is an advantage to doing it in person. Some people do not do well with online learning. As I said earlier, if you want to meet the minimum requirements to obtain a license, do the online course. If you want to learn about hunting, take it with an instructor.
Why the differential in price? Good question. The online course revenues go directly to the government. Instructors have to buy the course materials (which includes the manual you get to keep), pay room rental, pay for liability insurance (I have posted this about a year ago when OFAH dropped instructors insurance), and then get charged by OFAH for each exam that they administer. This equates to the instructor entering in all of the required information which is uploaded to the MNR, and then getting charged a fee for doing their administrative work. Oh, and what is left over, pays for their time and effort in setting up and delivering the course.
One last thing to remember - with an instructor, there is at least a level of verification of who is doing the course. With the online course, there is no verification of who is actually doing the online exam. Current and future hunters should see the safety issue in this....