[paullth]

I work in an enterprise-ish setting and regularly develop with Spring MVC, Struts and Rails on the server side. More recently have been using Play 2.0/Scala (I must admit I have not had a Play app make it to production yet). I find it more productive, like rails in dev mode you can make a change, refresh the browser and watch what happens. This kicks arse compared to hot deploy/in place deploy with Java, or even to JRebel. The main advantage I find over the others in terms of framework features is the non blocking/asynchronous constructs provided out of the box. For anyone new to it, it's also worth noting that from 2.1 (almost out) you can integrate with Spring, and that there seems to be a healthy collection of 3rd part modules for it, ie for stuff like oauth. I could go on for ages, but essentially I prefer it to the other frameworks Im familiar with...