Which of these word processors for the Mac is the most accessible?

Hi there everyone. Between Pages, iWord Processor and the official Microsoft Word App which is the most accessible with Voiceover for Mac? Please also look at the requirements mentioned below:
1. Fully accesssibly works all the features of the Microsoft Word.
2. This includes creating a document, adding images, text, dlements such as Tables, Line Spacing, Character Spcing and much more.
3. Allows the user to take either quick simple notes or format the document without any limitations at all like Microsoft Word with a Windows Screen Reader.
4. Allows conversions and much more features to be used without any limitations at all.
Questions:
Between all the mentioned Word Pocessing Applications above which one is the most accessible with Voiceover without any limitations at all in addition to the usability of all the features of the Word Processor? Thanks for answering my questions.