Amiga was state of the art when it first came out, unfortunately they haven't progressed in the last 17 years so they are now far from state of the art. Apple has taken some good risks, the whole OS X thing, they've managed to put a Unix derivative on 3 percent of the desktops out there, no one has ever come close to that.
Want to tweak the internals? Pop open a terminal and a full Bash command line is there. Want to ignore internals? The GUI hides them from you.
The new iMovie is brilliant for short video projects, far more power and easy than the old toaster and completely run in RAM. Aperture pulls my 12 megapixel raw images from my camera and allows me to tweak them with ease. Garageband is fun. The new pages is a far better word processor than anything out there. Numbers, well who could say a spreadsheet is sexy? Numbers almost does it. Crickey the Mac is brilliant, it is cutting edge and it's what the Amiga has to compete with.
Amigas are great game machines, I love the old games, they are far more fun than the new games, but they've got a long way to go to be anything but a niche retro machine.
Amiga needs programmers, look at AROS, it's really the future, more so than the outsourcing company that bears the Amiga name. Running AROS on cheap intel equipment is the best way to save the Amiga. But there aren't enough programmers, the project is taking way to long. Once it's finished where are the programmers to do the APPs? AROS without APPs is nothing. You need the Aperture, iWeb, Final Cut type APPs, that's programming that few people will be willing to do with a promise of reward in the future.