Yes as BOW pointed out the Hood was not exactly a sitting duck. The Bismark weighed about 45,000tons and the Hood weighed about 42,000tons.
Both had 8 x 15" main guns
The Bismarks side belt had 320mm of armor and the Hood's side belt was a max of 305mm.
But the Bismarks deck armor ranged from 120mm to 200m and the Hoods deck armor ranged from 12mm to 76mm.
Their is also speculation that since the Hood was built several years after the Titanic in the same shipyards she may have suffered from the same metallurgical problems that doomed the Titanic, causing the hull to shatter when teh explosion occured.
I, too, believe in the scuttling. But can someone spell me a few. I don't understand why they would want to sink their own ship. To control their own destiny, to save pride? I don't understand it. Someone fill me in.
Pride issue was the biggest. A battleship is a country's pride, and to have it sunk by the enemy is a horrible thing. It was the mian reason why in WW1 Britian and Germany fought only 1 major sea battle, in fear of losing their pride ships. So sinking it themselves would take away the british pride of sinking the ship. The ship being sunk by the germans would be a way of saying, ha ha, with all that you did you couldn't sink our ship. We have such great ships you can't sink them, the only way for them to go down, is if we do it ourselves.
Makes sense, in an interesting but understandable way.
http://users.swing.be/naveditoen/edito/9880.html#220976 This has information on all the naval battles of WW2, its a good site