The TeXworks homepage states that "It is deliberately modeled on Dick Koch’s award-winning TeXShop for Mac OS X" and it seems that today people are using both. Both are delivered with TexLive and MacTex. TeXworks is available for Windows and Linux as well, what I consider a big advantage. TeXShop might have better OSX look&feel, but it is available for OSX only. So why should I use it, does it have advantages over TeXworks?
[Tex/LaTex] What are the advantages of TeXShop over TeXworks
mactexshoptexworks
Best Answer
TeXShop is a much more mature application, with a large user base and active development.
Some advantages:
The last two are very important for me. I have a soft spot for the fourth, since I contributed the code. :-)