Bingowings said:

Oh boy! Tru calling on the holophone.

Maybe the Death Star laser hitting the Executor idea could be worked into the Piett Insurrection idea but then again no, the superlaser on full power could take out a planet so even a big capital ship wouldn't stand a chance unless the batteries were low.

Well, it wouldn't have to be Piett at the Endor party doing the hand shaking (though I would like it to be if possible, since he is in essence the "Wedge" among Imperial supporting actors).

Another way to think of the DS beam is like this:
the beam is powerful enough to destroy a planet, which makes it an EXTREMELY powerful energy blast. If it hit something like a starship (which has nowhere NEAR the mass of a planet), the amount of energy hitting the ship (and destroying it) would be extremely minimal and the rest of the beam would carry through - like shooting a high-powered bullet at someone without armor or better still, a piece of paper - it goes right through them and continues on until gravity or heavier, bulkier obstacles stop it.

Another way to look at it would be shooting a howitzer shell at a bird: the bird would disintegrate and the shell could conceivably continue on until it hit something far more substantial. Also, I was thinking of ROBOTECH and some other anime where such beam weapons show a similar "swiping" effect.

For a more general "big battle" montage to help give some ideas as to how to expand the JEDI finale:
http://www.youtube.com/watch?v=t8OwY86Pd5c&feature=related

So whether the Executor is "cut in half or into pieces" or you show multiple ships just exploding ala the above Youtube link, either would be great to emphasise the power of the Death Star.