Disclaimer: I am a Jetty developer, but since you asked for any opinion, here you go.
A very alternative option is to run Jetty with its FastCGI module (this link is actually WordPress run by Jetty and with Chrome it's served via SPDY too - via ALPN).
Jetty is a Java server well known for its SPDY support (the only server that does transparent SPDY push), and recently for its FastCGI support too; it has a small memory footprint and it's highly scalable because it is completely asynchronous.
With HAProxy in the front (mostly for SSL offloading) we are very satisfied of the setup.