melee weapons table, some rebalancing required.
http://ufoai.ninex.info/wiki/index.php/Melee_weapon_tablethe combat knife is better than the kerrblade, becuase knife TUs are so low.
unless you have less than 13-11 TU you are always better off using stun rod single charge twice, rather than double charge.
kerrblade slash is almost entirely pointless, two stabs are better. unless you only have 14 or 15 TU.
i would like to acknowledge surrealistik's contribution to this. he pointed out a couple of days back on irc, that the knife was the best melee weapon, apart from plasma blade.