So after giving it some thought, looking at what everyone else had to say and going through my extensive homemade Family Guy MP3 collection I've narrowed it down to what I think are 15 of the best and most representative songs from the series: 5 from the first three seasons, 5 from seasons 4 and 5 and 5 from season 6 onward. Let me know what you think.
This House is Freakin' Sweet - "Peter, Peter, Caviar Eater"
Road to Rhode Island - "Road to Rhode Island"
Give Up the Toad Now - "Let's Go to the Hop"
You've Got a Lot to See - "Brian Wallows and Peter's Swallows"
So Awfully Diff'rent - "Road to Europe"
I Have James Woods - "Peter's Got Woods"
The Freakin' FCC - "PTV"
Shipoopi - "Patriot Games"
The Vasectomy Song - "Sibling Rivalry"
My Drunken Irish Dad - "Peter's Two Dads"
The List - "Lois Kills Stewie" (DVD version)
Me and Jesus - "I Dream of Jesus" (DVD version)
Take Me Out to pLace Tonight - "Tales of a Third Grade Nothing" (extended DVD version)
A Bag O' Weed - "420"
It's a Wonderful Day for Pie - "Road to the Multiverse"
This House is Freakin' Sweet - "Peter, Peter, Caviar Eater"
Road to Rhode Island - "Road to Rhode Island"
Give Up the Toad Now - "Let's Go to the Hop"
You've Got a Lot to See - "Brian Wallows and Peter's Swallows"
So Awfully Diff'rent - "Road to Europe"
I Have James Woods - "Peter's Got Woods"
The Freakin' FCC - "PTV"
Shipoopi - "Patriot Games"
The Vasectomy Song - "Sibling Rivalry"
My Drunken Irish Dad - "Peter's Two Dads"
The List - "Lois Kills Stewie" (DVD version)
Me and Jesus - "I Dream of Jesus" (DVD version)
Take Me Out to pLace Tonight - "Tales of a Third Grade Nothing" (extended DVD version)
A Bag O' Weed - "420"
It's a Wonderful Day for Pie - "Road to the Multiverse"