In principle, yes. But only in principle.
A whole bunch of posters go on about "hardware doesn't matter" and stuff, and to a great portion of the public that has always been true. But to a smaller segment of the populous the quality of the engineering matters, you might even know some of them. Heck, you might have even been one yourself. VHS vs. Beta anyone?
It's not because PowerPC is better, and like some other posters have chimed in, most other CPU architectures are better, The Itanium with its EPIC paradigm, the CELL BE, and the latest SPARC T4's and T5's are worth salivating over.
It's the principle, one of my core beliefs; The enemy of the 'very good', is the 'good enough'.
This is why I will always hate x86, even though I use it. No need to point out the irony.