Since Phoenix has no "%Enhanced Defense" modifier, there is no real advantage for using an exceptional Paladin shield instead of an elite, IMHO. Some elite Paladin shields do have higher blocking than their exceptional counter-parts. However, The Gilded and Zakarum shields both have the exact same blocking numbers.
BTW, the highest blocking Paladin shield is the Sacred Targe @ 60%.
Phoenix Vex + Vex + Lo + Jah
100% Chance To Cast level 40 Blaze When You Level-up
40% Chance To Cast Level 22 Firestorm On Striking
Level 13 Redemption Aura When Equipped
+350-400% Enhanced Damage (varies)
-28% To Enemy Fire Resistance
+350-400 Defense Vs. Missile (varies)
+50 To Life
+5% To Maximum Lightning Resist
+10% To Maximum Fire Resist
+15-21 Fire Absorb (varies)
my exceptional phoenix is the best i've ever seen for zealing. 205 def crown with high block, and low req. has a nice roll too... 458% ed, 121 ar. the duped vortex ones floating around are like 168 def with 44 res.