I thought I would let you all know what I finally decided to do in case anyone else is pondering this. I did a little research as to the reading levels of various translations and went to a Christian bookstore to view many of the Bibles in person.
I ended up deciding on the NIV translation for several reasons. It is roughly a 7th grade reading level so even though it is a bit of a stretch especially for my ds, I thought my children could read it fairly well now. Some of the other translations like ESV, NASB, and NKJV were at a higher reading level so I thought it might be a bit much for them at this point in time. I looked up several translations online, had my son read the various ones, and he was most comfortable with the NIV. We have been using the NIV translation for most of our Bible memory verses as well so I thought it would be more consistent for my dc to have a NIV translation.
I looked at the various formats and decided on the NIV Thinline Bible for Kids. It is 8 pt. type which is still big enough to not be intimidating but it is a nice thin Bible. The print is clear and easy to read. It's set up in a 2 column format and the Words of Christ are in red. It has nice maps and a concordance. It doesn't have any of the fancy devotions or extras in it, but I decided something simpler might be a better choice. Some of the extra things that are included in some Bibles can make it more difficult to find passages. I showed a few of the samples to my son online and he didn't like the cluttered look of many of the extras. As I looked at some of the Bibles that were marketed to tweens, I felt a little uncomfortable with some of the topics that they were discussing. It was just a bit too old for my dc and I thought when they get a bit older, they might feel those things are a bit too young. So I decided on a plain version that I feel will grow with them. I really loved the purple butterfly cover on the girls Bible and the brown circle design on the boys. Both of these should grow with them and not seem too young for them even when they are teens. At least that is my hope. I had their names engraved on their Bibles and I'm looking forward to giving them each their special Bible on Easter.
I decided that one can never have too many Bibles and while I was looking I came across the Treasure Study Bible. It's a kids version of a Thompson chain reference NIV Bible. It has fun treasure hunts that one can do throughout on different topics. It also has some nice study information on each book of the Bible. It's bigger and hardcover so I didn't think it would be a good choice for my dc to carry to church. It also has that extra stuff that could make it more difficult to quickly locate a particular passage, but I really liked it. So I decided that it would be an excellent addition to our school books. I now have a nice study Bible for my dc to use as a reference.
I'm really happy with the choices that I made for my dc now, but in retrospect, I would have gotten them their own Bible sooner. I wish I would have gotten them the NIVr Adventure Bible a couple of years ago. That would have been a nice one that would have been at a reading level they could have handled about the time they were reading or about to finish the emerging readers. The format and style of that Bible would have been fun for them at that time and I think would have had them digging into the Word a bit more. I probably still would have been getting the Bibles that I'm getting now or fairly soon, but I think they could have benefited from having their own Bible at their level sooner.
Just thought I would share how it all came out. Thank you all for your input!
