Yes I think you're right on StrongARM which was the most powerful ARM CPU for a long time. Eventually made its way to Intel I think.

I think everyone eventually had their own RISC - IBM, HP, AMD, Intel (i960) plus MIPs and SPARC of course and a few others.

Arm eventually got traction because of the business model and because they intentionally didn't go head to head with the Intel x86 juggernaut. It wasn't obvious for a long time that their model would work though.