The question was which has more potential, your just changing the question to suit how you want to answer it. Of course a 4.03" bore has more than enough potential to build what the average build does probably a 273 3.625" bore is enough bore to accomplish the average guy hp.
So under your reasoning engines under 440/454/460 are doomed to lose most of the time.
That didn't stop you from leaving a statement of oversimplification and filled with a lot of assumptions.