The article "Grammatical Errors in the Qur'an", also gives the corrected form of the verses discussed.

Taking any of those corrected verses, they are certainly
1) "Like it" -- being only one or two letters different from a Qur'anic verse! What could be more "alike"?
2) different (from anything in the Qur'an) -- since they are not in the Qur'an in this exact form. And this also means, they are not from God but man-made.
3) better -- maybe a few of the corrections affect the poetic beauty of the verse, but surely not for all the examples provided above. Therefore then, the verses are equally beautiful, but better in the category of Arabic grammar.

If you disagree, please explain exactly why you disagree and give rational criteria why this suggestion is disqualified as meeting the challenge of the Qur'an.

Is the Qur'an miraculous?
Answering Islam Home Page