In no particular order. Thanks to the wife - @SammyJo - and her lists of music, here's 10 of the albums that I enjoy from the 1970's.
Grease - 'The Original Soundtrack From The Motion Picture' (1978)
What a movie! What a soundtrack! Chock full of hits. It's a 70's experience.
ABBA - 'The Album' (1977)
More hits! 'The Eagle', 'Take A Chance On Me', 'The Name Of The Game', 'Thank You For The Music' and 'I'm A Marionette' are some highlights. Classic.
Blondie - 'Parallel Lines' (1978)
Wall to wall hits. A combination of pure pop, punk spirit and dance music in a unique blend that could only be Blondie. Love it.
Billy Joel - 'The Stranger' (1977)
Again, more late 70's! Billy Joel was one of my first albums that I got when I was a kid. I was infatuated with him for a number of years. 'Movin' Out', the title track, 'Just The Way You Are', 'Scenes From An Italian Restaurant' (My wife's favourite), 'Only The Good Die Young', 'She's Always A Woman'.
Tubeway Army - 'Replicas' (1979)
Gary Numan's band. Has 'Are Friend's Electric?' on it. Enough said. 'Me, I Disconnect From You', 'Down In The Park' and other cool tracks. Iconic.
XTC - 'Drums & Wires' (1979)
Has 'Making Plans For Nigel' on it, which was a huge hit. It sounds great. Fantastic album.
Joni Mitchell - 'Blue' (1971)
This is a late addition, having heard it in my late teens, and was a great album to sit down, play and get sad. Joni was breaking up with her partner at the time, and starting a new relationship. This was the result.
'All I Want', 'My Old Man', 'Little Green', 'Blue', 'This Flight Tonight' and other jewels are on here.
Kate Bush - 'The Kick Inside' (1978)
'Moving', 'The Saxophone Song' , 'Kite', 'Wuthering Heights' and many, many more. Big album, her debut, a benchmark in modern music.
David Bowie - 'The Rise & Fall Of Ziggy Stardust & The Spiders From Mars' (1972)
There's no bad songs on this album. Wall to wall classics.
ELO - 'Out Of The Blue' (1977)
Double album. Starts with 'Turn To Stone', 'Sweet Talkin' Woman', 'Mr Blue Sky', 'Wild West Hero'. Great album.
Others that I could add? Patti Smith and 'Horses', Pink Floyd and 'The Wall' and the debut Roxy Music album...
All good. I'd probably add Fleeetwood Mac - Rumours, Eagles - Hotel California, Meatloaf - Bat out of Hell, The Cars - The Cars, Saturday Night Fever, The Who - Who’s Next, Led Zeppelin - Led Zeppelin IV, The Rolling Stones - Some Girls, and others.
I should add that 1981's The Visitors is very good as well, and very sad as it's the album that is like the final update to their marriage issues they sang about in Super Trouper.
I Love ALL the ABBA albums :) If I would choose between a best it would be a three way tie between The Album, Voulez Vous, and Super Trooper, Arrival is up there as well, and of course Waterloo.