Originally Posted by Arevos

When one talks about how powerful a particular language is, it's usually with respect to how quickly or efficiently you can solve problems with it. Talking about what computations it can achieve is meaningless; as you so neatly pointed out, any Turing-complete language can emulate any other. Thus, if I say, "Java is more powerful than Visual Basic", what I mean is, "Java is a more suitable solution to a wider range of problems than Visual Basic is".