I used Borland Delphi (as well as C++ Builder for some period) throughout my university times for all kinds of home works and hobby apps. It was extremely easy to build simple but still good-looking UIs. At some point I even had a small reusable library for graph problems (add/edit nodes/edges with nice arrows/labels etc.) What I really liked was how fast you could get to real coding part with minimum boilerplate. Happy to see Lazarus IDE still having a strong community.