I recently did a reset on my Mac, and had to re-download all of my favorite Apps.  This was actually a pretty painless process, but I thought a useful post might be all the top apps for Mac I think are worth having on my machine. These arn't really in a particular order:

1. Dropbox
2. Google Chrome
3. MATLAB
4. MacTeX
5. Latexian
6. Mendeley
7. Evernote
8. Skype
9. Sublime Text 2
10. GitHub
11. Xcode
12. Homebrew
13. SciPy
14. Microsoft Office
15. GitHub
16. R
17. R Studio
18. Calico
19. f.lux
20. Sketchup
21. Wunderlist
22. Caffeine

Some other mac apps I think are cool, but didn't re-install until I need 'em are:

1. Ardunio
2. Mathematica
3. Airfoil
4. Inkscape
5. Google Drive
6. Adobe Acrobat

What am I missing?