In this time and day, I would say AROS goes way beyond original AmigaOS in terms of features, most important being that it is not locked to certain hardware. In time I'm sure someone will be intrigued enough to implement better support for Amiga chipsets too. In the meantime I'm perfectly happy with AROS on x86, with Directory Opus Magellan, tbh I forget that it is AROS when I use it these days.