Weapon Focus: Decent, but Dwarves and Eladrin have a racial feat that outshines it, at least in Heroic tier. Others will probably find more useful feats to fill their slots.
Astral Fire/Burning Blizzard/Raging Storm:
The Majority of Channel Divinity Powers:Some are truly awful.
I've never seen anyone take the following:
Expanded Spellbook - you already get twice the choice everyone else does, why do you need more?
Far Shot and Far Throw - I've never found the ranges on weapons to be a major factor in my games.
Fast Runner - +2 speed would be nice if it wasn't so situational.
Long Jumper - To be honest, I don't make enough jumps for this to be a worthwhile feat.
Mounted Combat - Not really seen much point in this to be honest. I haven't had a mount yet, though.
Shield Push - You can push someone one square IF something very situational happens. Keep in mind that you have an at-will power that pushes people one square.
Skill Focus - Generally speaking, you can be good enough at a skill without needing this.
Sure Climber - I don't climb that often that I need to spend feats on it.
Shield Push - You can push someone one square IF something very situational happens. Keep in mind that you have an at-will power that pushes people one square.
Shield Push - You can push someone one square IF something very situational happens. Keep in mind that you have an at-will power that pushes people one square.

(Dungeons & Dragons)
Rulebook featuring "high magic" options, including a host of new spells.