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I'm late to the party on this, but a top 100 that only has 1 player from Penn State, and it's Evan Royster, is fundamentally flawed.

Penn State's top 10

Saquon Barkley
Ki-Jana Carter
John Cappelletti
Curt Warner
Larry Johnson
Curtis Enis
Lydell Mitchell
Lenny Moore
Franco Harris
Blair Thomas

Okay, you fit the 300 RBs that SHOULD be ranked in the top 100...

This is why the all-time rushing leader should be the one with the highest career yards per game.  Or even better - yards per start. 
But we don't have that, because people hate math...even simple arithmatic.

but, we can do that to assemble this top 100 list

yards per game is probably easier to acquire, but yards pre start would work better for me

we agree again

I was thinking about Ron Dayne this morning.
The all-time leading rusher (I think?).  
Being ranked 3rd by our own resident Badgers.
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So...what should he have done differently?  No, not even realistically, but more like what would had to have changed for him to be #1?  Would you make him faster?  Say we could make him faster, from a 4.55 guy to a 4.4 guy.  So he's 5'10", 260 lbs, running a 4.4.  Does he have the same career?  Would he have rushed for more yards?  Wouldn't his whole running style change?  Wouldn't the play-calling change?  
He did what he did using what he was, and it yielded the most rushing yards in a career.  I don't think you change that.  I don't think you slide it into 3rd place at his own program, right?  
I'm reminded of a quote from Moneyball - I think some of you are trying to sell jeans.  You've got super-productive guys who juke and run a 4.4 having great careers and then you have a short, fat guy who jogged and bounced off people who was a bit more productive....and most people side with the 4..4 guys.  We're not selling jeans, here.  

Doesn't it feel odd to say the guy who ran for the most yards ever wasn't _____ enough?  Again, what more do you want?

Doesn't it feel odd to say the guy who ran for the most yards ever wasn't _____ enough?  Again, what more do you want?

Dayne got a ton of carries though. How many other backs started all 4 years and averaged over 300 carries a year? That’s why he’s got the stats. 

Doesn’t take a genius to know when one player is better than another. You can just see it. Jonathan Taylor to me is just so superior to any Wisconsin back that I’ve seen. You’re talking about a guy that’s just short of 5’11 and 230 and has power, wiggle, agility and true track speed to hit the home run. Taylor tested 4.39 at the nfl combine. He’s got basically the perfect size and build for a RB and elite speed. Dayne was one of the greats in Wisconsin, Big Ten, and NCAA history, but he wasn’t as good of a football player as Jonathan Taylor.  

Dayne got a ton of carries though. How many other backs started all 4 years and averaged over 300 carries a year? That’s why he’s got the stats.
Yes, exactly.  If it was so easy, why isn't it common?

Doesn’t take a genius to know when one player is better than another. You can just see it. 
Yeah, you can have that.  I'll stick with what actually happened on the field.

Jonathan Taylor does have a claim to the best ever - because of what he did on the field.  The one thing Herschel Walker's proponents had was the 'most yards in a 3-year career' thing.  But Taylor has that now.  He earned it on the field.
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As I said before, there's a reason no one else has 1,220 carries.

Their yards per carry would plummet. 
Can you guarantee those players will handle 1,220 carries?  Won't get hurt all the time?  There's a reason only one player has 1,220 career carries, and his name is Ron Dayne.

there's also a reason one player had more yards in a single season with fewer games and fewer carries than Ron

his name is not Dayne
Dayne had the opportunity for the single season record FOUR times.  He couldn't do it.