re: Trying to build up a new classic rock playlist. What should I have?

Here's mine copied and pasted from my iPod:

Caught In a Dream - Alice Cooper
Rock Me - Steppenwolf
Mr. limousine driver - Grand Funk Railroad
Uncle Lijiah - Black Oak Arkansas
Best Years of Our Life - Iron Butterfly
The Wizard - Uriah Heep
Bluebird - James Gang
Supernaut - Black Sabbath
Ride With Me - Steppenwolf
Are You Ready (live) - Grand Funk Railroad
Baba O'Reilly - The Who
Misty Mountain Hop - Led Zeppelin
More Than A Feeling - Boston
Fire - Jimi Hendrix
Suicide, America - Steppenwolf
Thats the way that is - Uriah Heep
Tales of Brave Ulysses - Cream
New Day - Iron Butterfly
Draft Resister - Steppenwolf
Castle of Thought - Bloodrock
Walk Away - James Gang
I'm Your Captain (Closer to Home) - GFR
How Many More Times - Led Zeppelin
Purple Haze - Jimi Hendrix
Don't Fear The Reaper - Blue Oyster Cult
Badge - Cream
Space Trucking - Deep Purple
Don't Eat the Children - Bloodrock
Raging River Of Fear - Captain Beyond
Godzilla - Blue Oyster Cult
Nothing Is The Same - Led Zepplin
Feelin' Satisfied - Boston
Dancing Madly Backwards - Captain Beyond
SWLABR - Cream
Space Station #5 - Montrose