AAA Poll: Local, TACACS+, or RADIUS?

We are currently authenticating with local users, which is suboptimal for a variety of reasons, though it is simple. I’m deploying centralized authentication using RADIUS with Active Directory, and was curious what other people are doing. I was going to ask on Twitter, but then I thought some people might not want to say in public how they secure their network. It also thought it might be nice if everyone was able to see the results, so here is a poll so we can see how others are doing it.