The general misconception is that top guilds sit lower spectrum classes. In reality it's the opposite; mediocre guilds tend to sit classes that are a little under the average because they tend to exaggerate just how bad those classes are. Prime example; Paragon did progression last tier with a Guardian Druid. Yes, we're not going to bring 3 or 4 low tier classes to the main raid, and yes, if you want to reroll fotm for the tier and it fits the raid, all the power to you. However, when it really comes down to it, it has always been a case of the player not the class in any top end guild I've been in. If you're good enough, you'll always have a raid slot.