I would definitely get the Douay-Rheims. It is the only Bible I know of that is faithful to Genesis iii. 15: “SHE shall crush thy head” God says to Satan. SHE (Our Lady) shall cursh his head. Many new-age translations (from c. 1920- ) use either “He” (Christ) or “it” (the seed of Our Lady). These are both inaccurate and are clearly a shot at trying to remove Our Lady from the necessity for Salvation. Moreover, the Bible of the Church is the Vulgate. This is a direct translation into English of that version; therefore, it is the most accurate translation according to the Bible of the Church. Moreover, it uses beautiful language, which shows how the text is sacred and not just the same as some modern speech, which, unfortunately, is the opposite of what the translations for the Novus Ordo Mass are.
In any event, I could explain many other good reasons to get the Douay Rheims, but if you would like to get them all yourself (and explained in a better way than I am able), and since you want the best Bible, I would suggest you read this short work from TAN publishers (it’s very short): “Which Bible Should You Read” by Thomas A. Nelson. You can get it here for only 4 dollars:
tanbooks.com/index.php/page/shop:flypage/product_id/614/keywords/which,bible/
Also, if you want a good study Bible, I would suggest you get the Douay Rheims with Haydock’s Commentary (they are often called “Haydock Bibles”). The commentary is wonderful (and very thorough) by Fr. George Leo Haydock. He wrote the commentary in 1812, so it is not some modernist rendition or some neo-protestant bias. It is true Catholic teaching from a holy and very intelligent Priest. The version I have seen sold is a reprint of the 1884 edition. You can get it online for a very good price here:
prayrosary.com/shoppingcart/haydock.php3. It is under 0 dollars from that website, which is a great price for such an extensive and sound commentary. Also, it is beautifully bound.
I would highly encourage you to get this Bible if you want the absolute best, most Catholic Bible.