As I said, amazon reviews hardly mean all that much. They're user reviews that lack the professionalism of critic reviews, not to mention the standard for universal measurement and comparison. When a critic reviews a book, they do so using the same standards they apply with any book (in theory at least; in the case of Wonder Woman it would usually be held to a higher standard than KotOR in any event) whereas when a user reviews a book they have no such obligation and the score they give is usually arbitrary and imprecise. They are also an aggregate of a small sample size, that typically draws in the more extreme views on the products. As I said, it's a minority, but a vocal minority that seem to have issues with the new Wonder Woman, and they are a prime example of the type of people that would write reviews on the amazon website (you'll also get fanboys posting reviews as well of course, which is why there are so many 5 star reviews for the book as well). Either way, hardly the best measure of critical success you could have picked.
As for the other two, now you're just choosing to post random reviews. I can do the same:
http://uk.ign.com/articles/2012/08/15/wonder-woman-12-review
http://uk.ign.com/articles/2013/08/21/wonder-woman-23-review-2
From IGN no less, a far more reputable critic.
Here's a few reviews for some of the series I mentioned as being mediocre earlier:
http://uk.ign.com/articles/2013/09/05/the-star-wars-1-review
http://uk.ign.com/articles/2013/10/03/the-star-wars-2-review
http://uk.ign.com/articles/2010/07/09/star-wars-the-old-republic-1-review
Such consistency.
BTW I can give you plenty examples of good SW stories. Try the KotOR games for starters. I don't hate the comic series, I just don't find it at all spectacular.
If DC, and their better talent, actually cared about Star Wars, I'm sure they would produce some great books around the franchise, but as I said, most top talent aren't really all that interested in writing Star Wars.
And say what you want about DC, but no other company produces as many excellent series as they do, never mind consistency, especially if you include Vertigo. I mean, currently they are releasing all of the following:
1. Batman
2. Wonder Woman
3. Green Arrow
4. Animal Man
5. Swamp Thing
6. Astro City
7. Coffin Hill
8. Fables
9. Fairest
10. 100 Bullets: Brother Lono
11. Trillium
12. The Sandman: Overture
13. The Unwritten
14. The Wake
No other company comes close to releasing that quantity of truly excellent titles.