Let's see if this works... My party from my current playthrough (Barely killed Shadowheart, Astarian, Gale, and Lae'Zell... In that order. Haven't gotten to Wyll yet, but the Gobbos usually get him for me)...
I find it helps to put a bounty on Wyll in the multiplayer games to assure his death during the Goblin battle.
My one complaint of Lazael's armor is it really makes a male character look kind of dumpy. The Blauer Dragon looks like he needs to go on a diet.