Best Debut Albums

A big second to has2be's The Who's My Generation nomination. Another hugely influential (amongst musicians) debut album was The Yardbirds For Your Love. Guitar playing by both Eric Clapton and Jeff Beck. Tom Petty & The Heartbreakers s/t debut. Elvis Costello's my Aim Is True. The Bonzo Dog Doo-Dah Band's Gorilla. Jellyfish's Bellybutton (incredible!). Emitt Rhodes s/t. Byrds Mr. Tambourine Man.

+1 for Sea Level.  What an obscure entry!  Here's another one:  Ambrosia (self-titled).

Joe Cocker With a Little Help From My Friends
Canned Heat Titled Canned Heat

Herbie Hancock, "Takin' Off"
Saved a lot of Hancock recordings to favorites in Tidal & Spotify.  His discography is massive.  Have only listened to a small portion of it. Spending time with Takin' Off this evening.  Very impressed with it's melodicism, balance, economy and overall elegance.  Had to find this thread to post about it.  As per Wikipedia citing "The Rough Guide to Jazz", "...one of the most accomplished and stunning debuts in the annals of jazz."  Of course, he was no rookie in the studio when he made this recording.  Great sidemen too.  The compositions and soloing are first rate.  The 2007 Van Gelder remaster sounds great.   

Tracy Chapman
eels
Shuggie Otis
Melissa Ethridge
Rush
CSN&Y
Chicago Transit Authority
VanHalen
Little Village
Leon Russell
AC DC
Beatles
Dire Straits
Jackson Browne
Velvet Underground
Black Sabbath
Jayhawks
Of Monsters @ Men
Taj Mahal
Fleetwood Mac
Love
to name a few.............