Delphi had its place in 2001 along with NeXT's WebObjects. Products of their time for sure. However, the developer inspectors alone inside of Chrome and Safari are 100x more powerful than any of those old UI tools of the past.
100x more powerful than the Visual Builder in VisualAge suite of products [1] and Dolphin Smalltalk's MVP-based tool and code browsers [2]? While those (along with Delphi's VCL) are now a shadow of their past or completely defunct, I doubt anything comes close to them technically, let alone 100x more powerful than them. PS: I just missed that this is about Web development though. Will just leave the comment here for…
"As mentioned before, VAJava is written in SmallTalk. As expected, the environment is not going to set any speed records for Java performance"
"I used the JGL benchmarks to test the performance of the Java virtual machine. When running under VAJava, the benchmarks took significantly longer to run than they did under version 1.1.5 of Sun's JDK. Therefore, I would not recommend VAJava for testing applications which are primarily computational."
I've tried something from VisualAge at that time and it was a pure catastrophe. My conclusion was that it was bought only by the enterprises who decided to force their developers to "use IBM" no matter what. Maybe VAJava was different?