Wormhole beam is awesome. I once attacked some TDM Ai planet (think it was Master Belizarious pet). Planet had large WP with Ionic dispersor and wormhole beam. Before captain of my ship reilized what is going on, WP vaporized engines and then throw the ship into the corner where it sit for the remaining of the battle
Weapon I believe nobody uses - Crystaline torpedo. Miserable damage, so-so speed and structure points. Even reload of 2 does not help