The second Death Star was supposed to be the instrument that annihilated the Rebel Alliance.
Yet this did not happen, in fact this death star had a weakness even bigger than its predecessor.

The First death star had a small exhaust port leading to it's main reactor. It was this weakness, that the rebels exploited and used to destroy the space station.
The second death star had an even bigger hole in it's exterior with a tunnel large enough to fit the Millennium Falcon, this tunnel led strait to the main reactor thus making it even easier for the rebels to destroy it.
Now I know there was a defense shield in place, but The Emperor gave the rebels the exact location of the shield generator. He also allowed them to know exactly where the entry point on the death stars surface was. This is not very smart.
And again I have no choice but to say Emperor Palpatine was very careless when he set up his plan the eradicate the Rebel Alliance, again I have to say he Underestimated the Rebellions Military Power.

It's almost as if the imperials designed The Space Station to be "Rebel friendly" or something. I can imagine them have a meeting:
imp. Designer: well lest see, if we put a hole here and a tunnel there, the
Rebels should have no problem destroying the death star.
Palpatine: Yes you are absolutely right that would make it very easy
for those scum's, build it immediately.
The Emperor could just have given the rebels false coordinates of the shield generator and he could have made sure that the openings into the main reactor were closed at a curtain point or at least have them separately ray shielded, to make it more difficult for the rebel fighters to enter. Of course he should not have informed the Alliance about these extra security measures. But no he had to do it the easy way.

If they were given false coordinates, the Rebels would most likely never have found the shield generator and al their efforts in space would have been in vane.
And even if they did manage to knock out the shield, they would still have to find away to get past those ray shields. By the time they figured out how to do that their fleet would have been destroyed and their team on the surface would have been hunted down and killed.

This is what I would have done. What would you do, Let the rebels destroy your Death Star or like me, use any means necessary to defend it.

Please Comment, al agreements/disagreements and other ideas on the subject are welcome.

May The Force Be With You.......Always.