At the time there was zilog, ARM was starting up etc.
Point being, intel would have been in the Motorola position and Motorola in the Intel position with everyone cursing Motorola for their evil market dominance.
I don't buy the "if it was 68k people would have chosen better alternatives" the main sell ( apart from the brand IBM ) was its ability to run CP/M stuff which got the developers on board and then the rest of the market followed.
Other 68k items would have had a better chance of being compatible and selling in bigger volumes but thats about it. We would have all been using Intel chips in our Amagos and moaning about silly big endian architectures.
Plus people here seem to forget that it was IBMs input that gave birth to the 386.
