Gladiator's set or Ascalon set?

http://www.guildwarsguru.com/yak-s-b...shaw-id247.php

Buying from Yak's Bend.

Gladiator's Set
Armor: 50+20AL vs. physical
Energy: +8/0
Pieces: Boots, Hauberk, Gauntlets, Leggings, Helm
Cost: 32 Iron, 32 Tanned Hides, 750 Gold

Ascalon Set
Armor: 50+10AL vs. physical, Reduces damage from attacks.
Pieces: Boots, Cuirass, Gauntlets, Leggings, Helm
Cost: 32 Iron, 8 Fur Squares, 750 Gold

Ascalon set has reduce damage but Gladiator's has more defense. Which one is better for a lvl 13 W/Mo?

For a W/Mo? Gladiators. The extra energy is awesome!