I am still looking at a lot of the options. I like nkjv as it seems most complete. NIV is missing some scriptures.
So they say, regarding the NIV.
I really like the NKJV, too. It reads like the poetry of the KJV, but not the comprehension and old language difficulties.
Many people like the NKJV Open Bible Study Bible. It is packed with information. I found the print to be small, or something, it was just not easy to read. I had to send it back.
The Nelson NKJV Study Bible is great. Personally I liked it much better than the Holman.
I do not like ANY Life Application Bibles. All personal preferences, I know.