You said: "I don't care what Star's Rivals profile says."
Then you went on to use Rivals stats to justify Star being a better rusher than GMac, based on their rushing numbers from HS. When I pointed out that your statistical information regarding Greg rushing for less than 400 yards in his entire HS career was not only incorrect, but accounted for just over HALF of what he rushed for his senior season in HS, it turned out that you got your info from Rivals - the same site that you said "I don't care what Star's Rivals profile says." In reality you do care what Rivals says - as long as you can use it to bolster your point...which is incorrect.
In HS, Greg was a spread QB. Just from memory, he ran for 700 yards his senior season, and I think it was 12 touchdowns, against the highest division in Texas - even though he was primarily a passing QB. Part of Star's problem is that he is slow reading defenses and tends to run too quickly...he had that same issue in high school, which resulted in a lot of rushing yards. GMac goes through his reads much faster and generally does not take off until there is no other option. That said, GMac has very good vision, and outstanding balance when running downhill. He is slightly slower than Star running in a straight line. You really need to qualify the term "athletic" as you are using it. Greg's balance is easily as good as Star's, and while a tad slower, he is bigger and stronger. The term "athletic" gets thrown around too much imo, and I don't think anyone can say that Star would perform better in a spread option offense. It is a blind guess based on unfounded assumptions.
What does JR have to do with anything? Just an example of a "more athletic" QB who was not as good of rusher as someone "less athletic." Tyler was athletic, but from a pure athleticism standpoint, not many on the team (at any position) were better than JR. Even today he is built like a linebacker...but he was not a better runner than Tyler. That said, he was very good...one of Fran's greatest failures imo was to not utilize him for more than a holder on pat and fg team.
Would Star perform better in an option offense? Maybe...but I don't think there is enough proof to make that statement. Going by the same proofs, Zow and JR would have been 1-2 in Fran's offense. Zow ran for a ton of yards in HS, and JR was a physical freak...but Watts was the one who ran for 1000 yards in his career.
just my .02.