For dealing with destroyers or for using destroyers?
Both have their place and purpose, I cannot really decide. explosives give you an area damage useful for breaking up fleet formations and dealing area damage. While Projectiles offer specific targeting with range, ideal for prepping bases. I would really never take destroyers into Fleet vs. Fleet as while the Trident and swords offer good stats, they can be outclassed by cruisers and frigates to easy.