Ada is the most powerful object-oriented general purpose programming language. It has built-in concurrency, built-in exception handling, built-in generic templates, built-in distributed execution, standard and defacto standard interfaces to other programming languages and libraries, compiles to Java Byte Code and just about any OS under the sun, and a rich set of primitives for getting at and putting to work all that expertise you've embedded in your software.
Ada: Real Time Power!
(You can even build space stations with it.)
(Based on an e-mail from Marc A. Criley)