Rails Server Options -- Too early Too Many

Right now there are sooo many options for server stacks, that its pretty overwhelming.

Server Benchmarks - benchmark-passenger-mod_rails-vs-mongrel-vs-thin

ebb vs mod_rails vs mongrel vs thin
apache vs nginx

So what do I use. I think the overall immaturity in some of these offerings are a little scary, and just going with a simple nginx mongrel cluster setup is probably the most standard. Bur reading about the Bitnami stack made me look into other solutions. I will implement this on stack on my vps and have a write up on ease of installation and setup.

Related links :

Nginx "how to" - Fast, Secure and Efficient Web Server
Thin - yet another web server
Bitnami