Depends..
Overall - 3 DEX, 52 Wep Def
Top - 2 DEX, 35 Wep Def
Bottom - 1 DEX/STR, 28 Wep Def
Together - 3 Dex/ 2 DEX 1 STR, 63 Wep Def (assuming that you're not gonna go for the hp/mp armor)
I think that you should only get the overall if you need to scroll it for DEX for the acc boost. (or for looks imo)