I use LaTeX in Mac for my scientific reports. I want to include illustrations like this:
One of my professors recommended DrawPerfect 1.1. It is obvious that he is outdated. I was thinking of using Illustrator or other vector drawing program or use PGF, TikZ, PSTricks, but I not sure what is the best option for a drawing program properly integrated with LaTeX which is not too difficult to use. What are the reasons to choose from the various options?