For the 4 years i played HS the best rushers were WBs or Javs, they are manueverable, and have a awesome top speed, combine this with 4 reps, 3 bursts, and AntiDeath, was one of the best setups. the only other ship that comes close to a good rushing ship is a weasel with the same setup. even for defending, a pulse laser wb is pretty good, if you can even out the recharge to cancel out the pulse laser. Moreover, the point of the game is generally to move the enemy backward with killing only being a real priority when clearing. Repels on small ships that move fast tend to effect this concept best.