Why don't you try and destroy Bitcoin as well, maybe Peercoin, Litecoin, and Dogecoin in for added measure? This whole destroying coins with absolutely no valid reasons behind it is beyond stupid and now, more than a few days in, the whole thing is pretty damn fucking lame.
Bitcoin and LTC for several reasons but mainly due to the fact I hold a lot of each.
Out of curiosity what is the probability you think you've to successfully destroy Bitcoin network? sorry can't resist.