Of the 3, I use Calligrapher and Phatnotes the most.
Calligrapher is really indispensable if you take notes as it recognises cursive handwriting. Besides that, if you care to play around with the macros, you will find that you can automate quite a lot of stuff with the built-in commands - limited only by your imagination - at $9.95 it's quite a bargain.