It really does depend on how big you want your Commander.
I got the regular size and it was just fine but my hands are a bit big, so I then got a Super Commander and it fits just right. The drawback? The sheeple are sometimes taken aback & frightened when the Super Commander is taken out for usage. But then again, sheeple at times freak out at the sight of the regular Commander -- it's size and recurved blade.
Which do I like better? The Super Commander. It's better for my larger hands.