I'm assuming that the obvious weapons of choice (charged Mavin Sword, and Kerah's Sword) go without saying, but even excluding those, there are several nice weapons out there. Most are randomly generated, so if you don't find them in one game, you may find them in another playing (I only found 1 Wizard's Blade the first time I played, but the last time I played I found about 6 of them!)
My favorite weapon is the Murakata Blade. This looks like a gold Katana, and is very rare (I've only seen it once in all of the times I've played this game).
Murakata Blade: one-handed, +2 to hit, 16-30 pts damage, special: Deathstrike, 80% toughness. Only downside is that it can't be Blessed or Enchanted.
A good alternative is the Tomonari Katana (also looks like a gold Katana.) one-handed, +2 to hit, up to 21 points of damage, and also has Deathstrike. Dosen't seem to have a downside--it CAN be Blessed and Enchanted, so potentially its a better weapon.
My favorite ranged weapon has got to be the Kiss of Death darts: Thrown weapon, 7-16 points damage, special: paralyze, posion, AND Deathstrike! And they only weigh about 0.2 lbs! As an added bonus, they can be Blessed for extra damage or accuracy. The downside is cost: a whopping 1775 g.p. EACH! It's well worth the money if you can save up enough to buy several of these babies. I prefer thrown weapons to bows as they are lighter, and only take up pocket space, leaving your left hand free for a 2nd weapon or shield. Of all the thrown weapons, I think darts and shurikens are the best; all of the others seem to be too heavy or inaccurate (WHY do throwing knives weigh 5 lbs. EACH?!!!).
Anyway, that's my 2 cents.
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