CBM lost it's technology vision & roadmap when JT fck'd over Chuck Peddle ... twice!
Chuck should have been CTO and CBM would still be around today - Amiga may have still come to CBM and if Chuck had of been there, along with Kit Spencer (marketing genius that made c64 the success it was & also fck'd over by CBM), imo the CBM & Amiga would still be with us today just like Apple!
IMO there is room for 3 major players in the computer Market - Amiga would ahve needed to corner a niche but with the head start they got in video editing etc it wouldnt have been hard.
As for a current platform, freescale PPC chips are imo a joke - the real action is in IBM's POWER range and the
7+ is an absolute fire breathing beast! (They Power, pun intended, IBM's Watson project)