You can only take 5 albums to a deserted Island...

I always find it interesting that there is typically little soul/funk/R&B to be found on these type of threads.

I grew up in the late '60s and '70s, and, while that period was obviously golden for Rock, I found black popular music to be more compelling. So, in that particular vein, I'd take these (and many more, if possible):

Open Our Eyes – Earth Wind and Fire

That's the Way of the World – Earth Wind and Fire

Tower of Power – Tower of Power

Back to Oakland – Tower of Power

Live in New Orleans – Maze, Featuring Frankie Beverly

      ^ these five if pressed

All Day Music – War

Wild and Peaceful – Kool and the Gang

Flood – Herbie Hancock

City Life / Unfinished Business – The Blackbirds

Have to jump in somewhere, so here goes:

Bee Thousand - Guided by Voices
Bewitched - Luna
Music from Big Pink - The Band
Pet Sounds - The Beach Boys
Led Zeppelin - Led Zeppelin

This is an impossible task really but those are the 5 I'd take today. Tomorrow could be a whole different story! 

1. American Beauty- Grateful Dead.                              2. Layla- Derek and the Dominos.                   3. Blood on the Tracks- Bob Dylan.             4. Everyone Knows This is Nowhere- Neil Young.                                                           5. Live in Alabama- Jason Isbell

Dylan - Blood On The Tracks
Queen - The Works
U2 - Achtung Baby
Rolling Stones - Exile On Main Street
Traveling Willbury's - Volume 1

Simon & Garfunkel "Bookends"
Elton John "Goodbye Yellow Brick Road"
Blood Sweat & Tears "S/T"
Chicago "Transit Authority"
Beatles "Abbey Road"