If you want to read a helpful interview to understand the differences between Bible translations and the kinds of decicions a translation team makes HERE is a great article. The interview is with Dr. Ed Blum the general editor of the Holman Christian Standard Bible. The main English translation I use is the New American Standard Version but I do really like the English Standard Version (after all it is the one all the "cool kids" are using these days- inside joke) and have especially found the ESV Study Bible to be an excellent tool. Some English translations are better than others and some are more readable. The ESV and HCSB have attempted to be in the company of the better word-for-word translations (like the NASB) while being more readable like the NIV. With all that said, check out the interview with Dr. Blum. Below are two more articles I'd recommend on English translations of the Bible.
John Piper on why his church uses the ESV
Daniel Wallace on why not the KJV