I never found a good 1-H sword through the whole game. My hero used a plain old 1-H Raanaar Sword. Don't know if the Gemmed Sword you have made in Act 3 stays with you, because that quest was broken in my game so I never saw it.
When I finished the game my stats were (1-H Slash with Shield):
Level..31
Str....70
Agil...50
Con....35
Int....13 (never put any points into this)
Surv...36
Speed..20
For a Melee character I would not skimp too much on Survival points, they seem to really help.
I de-trained 1-H Slash at the final battle, and re-trained 2-H Slash and switched to the Demon's Cutter Axe for the win.
Hope that helps
