For what it's worth, I regularly use the NIV Study Bible although I acknowldge it's not "the best" there is.
Mrs Ozzie reads the English Standard Version (ESV) which, when she reads out interesting texts to me, sounds quite good.
In our car we listen to the New Living Translation (NLT) and we consider this our favorite.
I think the important thing is to read any translation, and preferably not the NWT!
I'd hasten to add that it's still possible to show the truth about "The Troof" from the NWT and to preach the gospel from it, but it's certainly not as easy! Nevertheless, Mrs Ozzie and I will be using it (the NWT) at a conference on the JWs which we're hosting in September. It'll run over two separate days in the western suburbs of Sydney and is apparently quite popular going by the interest in it that's been shown already. So many people want to know how they can answer the Dub at their door. There's also some coming who're presently "Bible Studies" in nearby congregations. Interesting, eh?
Cheers, Ozzie