Table documenting over 300 verses changed in the new versions.
Table documenting complete verses removed in the new versions.
Table documenting 15 major Bible words removed in the new versions.
The New King James Bible: Counterfeit.
Did God silence some of the "scholars" working on the New Versions (see Luke 1:20)?
Did God silence a modern day Bible corrector on the John Ankerberg Show?
Otherwise, unless the newer versions' manuscripts and/or translators were (more) corrupted, there's nothing to say they're not equal to or better than the KJV.
The NKJV that I use has margin notes where the NU and other texts differ. One definite advantage of the KJV is its use of the pronouns "thee," "thou," and "ye," which add to the understanding (to the extent that such pronouns existed in the original text).