This sounds like a tough problem -- you've thought about it, examined many angles, yet cannot find a clear winner. So time to bring out the PHB decision tool, Flip a Coin!
Seriously. You've examined all the alternatives rather thoroughly with more data & values than we can know yet cannot determine a winner. They must be evenly balanced, so a coin toss (PRNG) is as good a decision method as any other. If you insist on persistantly over-thinking this question, then devote your efforts to finding something _new_ that turns the question into a slam-dunk.
ObOnTopic: If you mention the patent, many HR types will assume you assigned it to a previous employer. They might be impressed, or they might worry their software will be contaminated/infringe this other company's IP.