Sure that since you heard about the pentagonal stage, you are wondering which would be the best place to see the show. Well, there isn't a better place than another, wherever you stay you will see the show perfectly.
But maybe you want to see your fave guy closer, or better. I have made a plane with the stage and where each BSB do something.
So...take a look and if you are going to go to a concert choose a place to see it.
In case you want to know, I was in all the concerts in front of the guitars, and I think this could be called the "Nick's side". He spents almost all the time there. I saw him perfectly.
But if you like AJ, he spents almost all the time in the opposite side, in front of Mindi.
Brian spents a lot of time in front of Bubba and Tommy,
Kev and Howie, try to be in all the sides the same time, so they don't have an "own" side.