Spell Catcher vs. TextExpander vs. Typinator vs. TypeIt4Me, etc.

Has anyone used more than one of these apps who could describe the advantages and disadvantages of each or the difference in how each one works?

Also do any of these programs import Microsoft AutoCorrect files because I have built up a huge library of shortcuts in mine and wish there were a way of exporting it to a universal application.

Thanks.

Robyn

import spellchecker dictionary and or word dictionary to textexp

Can anyone give me instructions how to import Spellchecker from Rainmaker dictionary and/or Word dictionary into Textexpander?