KJV is rife with errors. It is translated from much later manuscripts, which have both copyist errors and embellishments by scribes. The only reason the so-called "majority" text, or Textus Receptus has more texts, is because Greek stayed a spoken language much longer in Greece and the Byzantium Empire, leaving more time for more erroneous texts to accumulate.
In manuscript translation, the copies that are closest to the time they written are the most accurate. Hence, the KJV uses the more inaccurate manuscripts, to say nothing of the fact that it was based on Erasmus' version of the Bible, which he had to submit to the Roman Catholic church, who made him change things to be in line with the Latin Vulgate, a notoriously bad translation by Jerome, who did not have a good grasp of either Greek or Hebrew.
I think any version which follows the original languages more or less, has the ability to lead people to Christ, and impart good doctrine. I've read almost all the English versions, except KJV which I can't get through because of the archaic language and convoluted grammar.
My recommendations would be ESV or HCSB. Or any version which you can understand well.