It's quite obvious I voted for AROS. Mainly for two reasons:
1) it will be available also on classic the classic Amiga architecture, being it real or emulated or reimplemented
2) the efforts to make it reach complete M68K's binary compatibility will positively influence also other ports, whose support for the original Amiga API will improve
In the end, it will be "Amiga redone from scratch", it will be free, and it will work on a wiiiiiide range of hardware platforms, from PPC to x86 through ARM and others.
