Best/Worst by Tier.

Name the best and worst of each tier. I'll start:

Tier 1
Best: Talk Dirty To Me - Poison
Worst: Story of My Life - Social Distortion

Tier 2
Best: Barracuda - Heart
Worst: Bulls on Parade - Rage Against the Machine

Tier 3
Best: Paint it Black - The Rolling Stones
Worst: When You Were Young - The Killers

Tier 4
Best: Even Flow - Pearl Jam
Worst: Kool Thing - Sonic Youth

Tier 5
Best: La Grange - ZZ Top
Worst: Same Old Song and Dance - Aerosmith (hard desicion)

Tier 6
Best: Black Magic Woman - Santana
Worst: The Metal - Tenacious D

Tier 7
Best: Cult of Personality - Living Colour
Worst: Stricken - Disturbed

Tier 8
Best: Number of the Beast - Iron Maiden
Worst: Raining Blood - Slayer

Co-op Encore
Best: Cities on Flame - Blue Oyster Cult
Worst: Sabotage - Beastie Boys

Tier 1
Best: Hit Me With Your Best Shot.
Worst: Story of My Life.

Tier 2
Best: Mississippi Queen.
Worst: Sunshine of Your Love.

Tier 3
Best: The Seeker.
Worst: Miss Murder.

Tier 4
Best: Even Flow.
Worst: Kool Thing.

Tier 5
Best: Same Old Song and Dance.
Worst: La Grange.

Tier 6
Best: Cherub Rock.
Worst: Black Magic Woman.

Tier 7
Best: Cult of Personality.
Worst: 3s and 7s.

Tier 8
Best: One.
Worst: Raining Blood.

Co-op Encore
Best: Cities on Flame With Rock and Roll.
Worst: Helicopter.

Tier 1:
Best: Slow Ride :: Foghat
Worst :: Poison :: Talk Dirty to Me

Tier 2:
Mountain :: Mississippi Queen
RATM :: Bulls on Parade

Tier 3:
The Who :: The Seeker
As for the worst, this is a tough choice. When You Were Young is the worst song, but it has an incredibly fun chart. When You Were Young.

Tier 4:
Pearl Jam :: Even Flow
Sonic Youth :: Kool Thing

Tier 5:
ZZ Top :: La Grange
Aerosmith :: Same Old Song and Dance

Tier 6:
Santana :: Black Magic Woman
Smashing Pumpkins :: Cherub Rock

Tier 7:
Muse :: Knights of Cydonia
Disturbed :: Stricken

Tier 8:
Eric Johnson :: Cliffs of Dover
Slayer :: Raining Blood

Co-op:
Matchbook Romance :: Monsters
RHCP :: Suck My Kiss

Bonus:
Backyard Babies :: Minus Celsius
The Sleeping :: Don't Hold Back (the guys voice is annoying. I hate Belly of the Shark more but the singer makes it hard for me to play this song.)

(best, then worst)

Tier 1:

Talk Dirty To Me
Hit Me With Your Best Shot

Tier 2:

Mississippi Queen
Bulls On Parade

Tier 3:

Lay Down
Miss Murder

Tier 4:

Even Flow
Kool Thing

Tier 5:

Holiday In Cambodia
Same Old Song And Dance

Tier 6:

The Metal
Cherub Rock

Tier 7:

Cult Of Personality
Before I Forget

Tier 8:

Cliffs Of Dover
Raining Blood

Co-op:

Cities On Flame With Rock And Roll
Sabotage

Bonus:

Impulse/My Curse/Take This Life
Prayer Of The Refugee

Tier 1
Best: Slow Ride-Foghat
Worst: Story of My Life - Social Distortion (Rock and Roll all Nite crap cover takes a close second)

Tier 2
Best: Schools Out-Alice Cooper
Worst: Bulls on Parade - Rage Against the Machine

Tier 3
Best:
Worst: When You Were Young - The Killers

Tier 4
Best: Even Flow - Pearl Jam
Worst: Anarchy In The U.K-Sex Pistols (this re-recording sucks)

Tier 5
Best: Rock You Like a Hurricane-Scorpians
Worst: Holiday In Cambodia - Dead Kennedys

Tier 6
Best: Black Magic Woman - Santana
Worst: The Metal - Pride And Joy - Stevie Ray Vaughn (Dear God Please kill whoever sung this cover, kthnx)

Tier 7
Best: Knights of Cydonia - Muse
Worst: 3's and 7's - Queens of the Stone Age (Never liked QotSA)

Tier 8
Best: One - Metallica (Hard Decision between TDWDTG)
Worst: Raining Blood - Slayer ( Not that I dont like it, I just like the other songs moar)

Co-op Encore
Best: Cities on Flame - Blue Oyster Cult
Worst: Sabotage - Beastie Boys

Bonus Songs
Best: Impulse - An Endless Sporatic (No contest)
Worst: Radio Song - Superbus (why is this even here?)

Tier 1:
Best: Poison - "Talk Dirty To Me".
Worst: Social Distortion - "Story of my Life".
Tier 2:
Best: Alice Cooper - "School's Out".
Worst: Heart - "Barracuda".
Tier 3:
Best: Priestess - "Lay Down".
Worst: Rolling Stones - "Paint It, Black".
Tier 4:
Best: Weezer - "My Name Is Jonas".
Worst: Sonic Youth - "Kool Aid Thing"
Tier 5:
Best: Scorpions - "Rock You Like A Hurricane".
Worst: Guns N' Roses - "Welcome to the Jungle".
Tier 6:
Best: Tenacious D - "The Metal".
Worst: Rob Zombie - "Black Sunshine".
Tier 7:
Best: Living Colour - "Cult of Personality".
Worst: Queens of the Stone Age - "3s and 7s".
Tier 8:
Best: Steve Ouimette - "The Devil Went Down to Georgia".
Worst: Slayer - "Raining Blood".

Is this, to play? Or to listen to?

Tier 1:
Best: KISS - Rock And Roll All Nite
Worst: Social Distortion - Story of my Life

Tier 2:
Best: Mountain - Mississipi Queen
Worst: Heart - Barracuda

Tier 3:
Best: Priestess - Lay Down
Worst: AFI - Miss Murder

Tier 4:
Best: Pearl Jam - Even Flow
Worst: Sonic Youth - Kool Thing

Tier 5:
Best: Guns N' Roses - Welcome To The Jungle
Worst: Aerosmith - Same Old Song And Dance

Tier 6:
Best: Santana - Black Magic Woman
Worst: Rob Zombie - Black Sunshine

Tier 7:
Best: Living Colour - Cult of Personality
Worst: Muse - Knights Of Cydonia (great to listen, but not fun at all)

Tier 8:
Best: Eric Johnson - Cliffs Of Dover
Worst: Slayer - Raining Blood

Coop:
Best: The Strokes - Reptilia
Worst: Matchbox Romance - Monsters

Bonus:

Best: Impulse
Worst: Take This Life

Tier 1
BEST: Slow Ride- Foghat
WORST: Story Of My Life- Social Distortion

Tier 2
BEST: Bulls On Parade- Rage Against The Machine
WORST: Barracuda- Heart

Tier 3
BEST: Lay Down- Priestess
WORST: When You Were Young

Tier 4
BEST: My Name Is Jonas- Weezer
WORST: Kool Thing- Sonic Youth

Tier 5
BEST: Rock You Like A Hurricane-Scorpions
WORST: Same Old Song And Dance-Aerosmith

Tier 6
BEST: The Metal- Tenacious D
WORST: Cherub Rock- Smashing Pumpkins

Tier 7
BEST: Knights Of Cydonia- Muse
WORST: Before I forget- Slipknot

Tier 8
BEST: Number Of The Beast- Iron Maiden
WORST: Raining Blood- Slayer

Co-op
BEST: Reptillia- the Strokes
WORST: Helicopter- Bloc Part

Bonus
BEST: Impulse- An Endless Sporadic
WORST: Radio Song- Superbus