So, while it may lead to "which version is the inspired word of god?", that isn't so much my rub as is the question "why do you choose one version over the other in a particular instance to suit your argument, then a different version for a different argument?".
There are several reasons I choose a particular version. For personal use it is really simple, I grew up using the KJV and love the poetic language and feel. Then as I learned more about its history I began to see the attempts in the KJV to avoid conflict and promote a peaceful society.
During discussions and debates though I usually try to select a version that will help me communicate with the person I'm replying to while not obscuring the larger goal of reaching the whole audience. It sometimes means looking through several versions to find the one that uses language that I hope will resonate with the particular person I'm debating.
Anyone so limited that they can only spell a word one way is severely handicapped!