I like the poetic feel of the KJV, but the language is outdated, and can lead to misinterpretations. I have a large (some would say display) version given to me by my parents. It’s a New American interpretation, which seems accurate enough, if less poetic.
But this is only for if someone wants to be nit-picky about stuff that doesn't matter much. For instance, I haven't read a version that says Jesus isn't the Son of God or that Jesus died for some other reason besides our salvation. I'm talking about little stuff.
I only use the KJV in English and the Reina-Valera Antigua in Spanish.
The KJV is the only Bible that is not confusing. Remember it only takes one generation to make a word archaic. By the way...I believe the KJV is the only english language bible that does not have a copyright.