I did compile a list which I added to the comments. However, based on the number of questions I've received I thought it would be best to publish the list as a blog post, something people could easily find and bookmark, with some additions to what I originally posted. I've limited this list to distributions commonly used in businesses (large and small), academia, and in non-profits. I have not included specialized distributions, including those designed for use by security professionals. Most of these distributions also are excellent choices for personal use.
Red Hat Enterprise Linux / Centos / Scientific Linux / Springdale Linux
- Red Hat Enterprise Linux 7 Security Guide
Chapter 4: Hardening Your System with Tools and Services
- Red Hat Enterprise Linux 6 Security Guide
- University of Texas Red Hat Enterprise Linux 7 Hardening Checklist
- CIS Red Hat Enterprise Linux Security Benchmarks