This has been a question often asked without a single answer. 1. The King James is an excellent translation and accepted by almost all Christians. However, it does not use the oldest Greek manuscripts (it used the Masoretic Text for Old Testament, which has been shown as the best available single text). The New King James has updated the language, but does not make many word-order changes which make for a better flow of English. 2. The ASV (American Standard Version) of 1908 was an attempt to create a more-literal word-for-word translation of the best Greek texts. It's slightly superior to the KJV for translation, in my judgment, but an infelicitous English translation. It is somewhat hard to read. 3. When reading from the pulpit, I prefer the NIV or the NASB, as they are both good translations and are easier to read out loud. When asked to read in my church, I usually choose the NIV. 4. All these are excellent Bibles, and it comes down to personal preference.
When you pray first for God to give you understanding and wisdom of His word any bible is understandable. The King James is best. Others changed words. Change a word you changed the meaning. The others are fine for life application and to know Jesus which is the important thing. Just don't try to understand prophecy because the words are to different.
One of the reasons serious students and wise seekers of truth use the King James Bible is their confidence that it accurately presents the true character of the Creator God. All others are compared to that standard. This God claims to not only be real but to be actively involved in the life of each individual. He would certainly want the truth to be told and the seeker would have the same desire.
I Find That The Amplified Version Gives Me Additional I n s i g h t In Parenthesis That Helps To Understand The Words Much Better. ><> ------ Example ><> ------ THEREFORE, [there is] now no condemnation (no adjudging guilty of wrong) for those who are in Christ Jesus, who live [and] walk not after the dictates of the flesh, but after the dictates of the Spirit. --------><>----------><>-------------- For the law of the Spirit of life [which is] in Christ Jesus [the law of our new being] has freed me from the law of sin and of death. (Romans 8:1, 2 AMP)