[Animayhem]

I'll give some class ideas. Let the witch hunt commence!

First one. A human cleric, paladin or champion of Gwaeron Windstrom multi-classed as ranger, druid or both.

Gwaeron Windstrom
Alignment: Neutral Good (for Champion PrC)
Portfolio: Tracking, Rangers of the North
Allowed Domains: Animal, Good, Knowledge, Plant, Travel (for Clerics)
Clergy Alignments: LG, NG, CG
Favored Weapon: Greatsword (for Champion PrC)

Favored weapon does not just have to be for a PrC. Druids are limited as to what they can use weaponwise so a focus in one helps. Caramiriel's focus is the Scimitar.

Third one. A human cleric of Velsharoon, multi-classed as necromancer and (optionally) pale master or blackguard.

Velsharoon
Alignment: Neutral Evil (for Blackguard PrC)
Portfolio: Necromancy, Necromancers, Evil Liches, Undeath
Allowed Domains: Death, Evil, Magic
Clergy Alignments: CN, LN, NE
Favored Weapon: Quarterstaff (for Blackguard PrC)

Here a quarterstaff is wasted as humans automatically get shield feat and clerics I believe martial weapon feat. Quarterstaff specialization could be for pure arcanist or druid.
Favored Weapon would be better as one of the martial weapons.

Fourth one. A any race wizard, with a specialization (any school, no generalist) and the following feats selected: still spell, light armor proficiency and medium armor proficiency. (ADVANCED! Intended for those who would pursue full plate and still spell as a level 20th wizard rather than multi-classing and losing a meager amount of slots and such)

Arcanists do not need fullplate. The rate of arcane spell failure is 50%. If they take armor at all only light as even if they do not have still spell feat I believe the % of Arcane spell failure ranges between 5-15%. If they are humans they automatically get shield proficiency. Taking heavy armor a waste of two slots if not multiclassing.

Fifth one. A any race fighter, multi-classed as assassin and 1 level of any base class, with the following feats selected: weapon focus (sling) and stealthy.

Again here I disagree slings are a good back up especially for Druids who can not use bows. Bow specialization would be better or instead of specialization the Point Blank feat which allows switching from melee to ranged. Bow are stealthy and awesome for sneaky attacks. Sneak attack works better with blades like daggers.