Tier System for Classes (Rescued from MinMax)

[Shining Wrath]

Eberron Campaign I'm currently in has the following (ECL 7):
Warblade (my character)
Artificer (DM's character)
Bard / Marshall
Scout / Ranger
Cleric / Paladin / Crusader
Druid

In combat, the utility rating looks something like this:
Druid's pet fleshraker dino (T1 by derivation)
The Scout / Ranger (T4)
The Warblade (T3)
The Druid (T1)
The Artificer (T1)
The C/P/C (T1? T3?)
The Bard. One song at the start of combat, and then try to hide; lowest AC, lowest HP, and a CHR / INT / STR based character has to hope they never have to save. First time we fought vampires, my Warblade wound up pinning the poor dominated bard to the ground while the C/P/C did his thing, and the fleshraker dino did her thing.

Out of combat the Scout, C/P/C, and Bard have most of the fun. The main contribution of my Warblade is an occasional Intimidate. But since 90% of the game is combat, overall we're all contributing more or less equally. But, note well: the Tier 4 character (Scout) is the only one that is important in combat and out. She's our search / sneak / look skill monkey, and our Striker.