Large pulls VS Small pulls... in leveling dungeons?

[Kikosho]

This can be simply what type of tank you had and how they play. I've leved almost two healer classes.. there can easily be a night and day difference between some dark knights. Some are easy to heal and some dark knights make me want to vomit with stress.

So you're saying it's a player skill issue. That's basically what it boils down to in all of these threads.