Check out www.larkinorguide.com

tri a crsebow and steel chain

Level 13 strongest weapons:

6 bladed sword:  62 Damage/8 scatter
skivian sword:   67 Damage/10 scatter/Magical

Or,if you already have them, You could use
   a lvl 12 studded club:  71 Damage/24 scatter
or a lvl 12 silver morningstar: 65 Damage/17 scatter
or a lvl 12 skivian crossbow: 62 Damage/11 scatter/Magical

Besides strength, it's important to look at the scatter, if the weapon is Magic or Vampiric, how much it weighs and if it meets your needs for p/s, s/s and ranged lvls

thanks guys, im going for a skivian sword and skivian crossbow.....larkinorguide.com's a big help ;)