Hello? ;) I'm having an ok day what about you?
I would say 2. As the line of best fit is supposed to represent the average of all the data points. It's not nessecarily needed to go through every point.
1. It is easier to apply it to real-world situations once you have learned to construct geometric figures using compasses and straightedges.
2. Constructing geometric figures yourself also helps you understand the material and learn easily.
3. There is more accuracy and it is easier to prove your accuracy in your own constructions.
I hope this helps :)
