I answered Objective-C only because I'm considering the entire ecosystem around a language in addition to the actual language (its features, idioms, and syntax)

I answered Objective-C only because I'm considering the entire ecosystem around a language in addition to the actual language (its features, idioms, and syntax). Objective-C isn't a particularly pretty language, in my opinion - but when XCode's powerful code completion, decent visual debugger, and awesome static analysis come into play, it's a lot more attractive. Plus, for me, programming is about the goal, with the journey an oft-pleasant and very engrossing side effect. Objective-C hits the sweet spot where the language and toolchain gets out of my way and lets me build beautiful, functional software that people actually use.