Hmm. Few side notes.
Note: Most Unplayable Trash builds actually have two problems.
#1: They are front or back loaded. (Chained Monks)
#2: People over do it. (Int-Fighters)
#3: Not understanding the point in the first place. (Chained Rogues)
#4: One Trick Ponies can be useful but really boring. (Pure HP Battery/Heal Clerics will make you almost unkillable, but they are useless in almost every other way)
Monks are fine.. after about level 5-6? Actually they can be super handy in a party as really mobile attack dogs for lower AC problems. (I.E. Tank Killers)
Rogues are fine.. As long as the person playing them understands that no.. that Sneak Attack damage will never make you a primary melee damage dealer. Your more a skill monkey that can be pretty useful in a fight to punish the enemy for making mistakes.
Int-Fighters. There is no such thing as a Int Fighter... There is a Fighter that's going to need 13 Int... There is no reason for a Fighter to have more then 14 Int. Because that's all you need to the Int feats.
As far as useless Trash? Oh boy.
Well you already stated Throwing Builds.. Yes they are terrible.
Almost anything that tries to do Unarmed Melee that is not a monk...
SlingStaffs don't work.. Actually a WHOLE but load of Exotic Weapons don't work. And even the Pazio staff have said that they actually only put some in because they felt like they (Had to) Because of 3.5
Pure AOE Damage Casters should be team killed on sight.
About half of the Bard Archtypes (And that's from some one who loves bards)
About half Druids.
A lot of Monk Archetypes.
Most Rogue Archetypes.
Any Type of 1/2 BAB Melee build. (Think you already said that)
A lot of Alchemists, Cavaliers, Gunslingers.. Actually just a ton of the Archtypes from the "Base Classes"
Gunslingers are Cancer if the game is not built for them.
Anything that needs a mount to work is really annoying unless the GM works with you.