I'd start out with a rogue since they can use the most amount of weapons and armors.
Look for weapons with enhanced effect on them, armors with strength or dexterity, and charms with strength or dexterity.
Stat your character about 50/50 strength and dexterity since you don't know what weapons you will be using.
If you do get a steady set of one weapon check
here for the Strength/Dexterity Ratio of the weapon and apply stats following this ratio.
Hope this helped!
Feel free to PM me with any more questions
