I’ve gone through both the Barton and the Wilson system. I have found many benefits to yours over Wilson.

Your system incorporates a multisensory approach to sight words. Wilson does not have that.

Yours has a fluency and phrasing part in each lesson that Wilson does not have.

Students learn how to construct sentences as well as write dictated sentences.

Your scope and sequence goes to a higher level.

Although the Wilson System is strong, yours is much stronger.