Hi Daniel As will all of these things it depends what you mean by "best".
If you want a stable runtime with the most features and are happy to work the OSOA version of SCA then go for the current 1.x release (1.5.1). If you want to use the OASIS version of SCA, want to use some of the new features, such as OSGi integration, and are happy to put up with some change in the runtime over time then go with the latest 2.x milestone release (2.0-M4). The 2.x code is also a good place to start if you want to get involved and help develop the runtime itself. That's where most of the action is these days. Hope that helps. Simon
