ActionScript 3.0 is basically Java. We're using it at work, and, compared to JavaScript (with a good library), it's pretty uncomfortable. They've made it (optionally) classical and static. Prototypes, dynamism, and FP are pushed into the corner. It's really gross. The modularity seems kind of nice at first, but then you realize they wrote a bunch of mediocre libraries instead of building a good lang. At least it has E4X, which is very nice, but then, I've found JSON to often be the better approach anyway.