If you look at the weapons in this link you can see the Str/Dex ratios for each type. What thus means is, each point of str or dex is effectively 1% * The ratio as a bonus to EE.
So, a club, for instance, has a 90/10 ratio. So each point in strength is (1% * .90) 0.90% EE, while each dex is 0.10% EE.
Daggers and clubs are good if you can stack a lot of 1 stat, and you get the most out of it. Weapons with more balanced ratios are evn better if you can stack a lot of BOTH stats, but that's really hard to do, because it's hard to find gear with a lot of stats, and they're very expensive.