This is JUST my opinion but here's how I rank all the Tony winners by decade.
First musical to win the Tony was....
KISS ME KATE - Good show (but OKLAHOMA! is best of 1940s)
SOUTH PACIFIC better than KMK
GUYS AND DOLLS not better thas SP but better than KMK
KING AND I better than all of above
WONDERFUL TOWN - enjoyable but not better than any of the above
KISMET - same comment as WT
PAJAMA GAME - same comment BUT better than WT or KISMET
DAMN YANKEES! - not as good as PJ GAME but better than WT or KISM
MY FAIR LADY - better than all above except KING AND I
MUSIC MAN - enjoyable, better than PAJAMA, G&D and KMK
REDHEAD - Weakest of all to date
SOUND OF MUSIC - better than REDHEAD, but not as good as others
FIORELLO - better than SofM, MUSIC MAN, DAMN YANKEES
+++ BEST SHOW 1949-1959: KING AND I; WEAKEST: REDHEAD
BYE BYE BIRDIE - Fun, better than SofM, not as good as others
HOW TO SUCCEED - Clever, funny but not as good as GUYS AND DOLLS
FORUM - Better than SUCCEED and BIRDIE
HELLO DOLLY! - Enjoyble, fun, better than BIRDIE
FIDDLER - Better than all the other Tony winners of 60s so far.
MAN OF LA MANCHA - Better than FIIDDLER? On a par anyhow
CABARET - blows everything else out of the water!
HALLELUJAH! BABY - weakest show this decade
1776 - Not as good as CABARET but damn close!
+++BEST SHOW 1960-69 : CABARET, WEAKEST: HALLELUJAH BABY!
APPLAUSE - Better than HALLELULJAH BABY & REDHEAD.
COMPANY - Better than APPLAUSE. Best swhow since CABARET
TWO GENTLEMEN OF VERONA - better than APPLAUSE but not by much
A LITTLE NIGHT MUSIC - EX - not as groundbreaking as COMPANY
RAISIN - Weakest of the decade so far
THE WIZ - 2nd Weakest of Decade
A CHORUS LINE - EX - but not as good as COMPANY
ANNIE - fun, better than APPLAUSE - but not by much
AIN'T MISBEHAVIN' - Revue. Not in league with book musicals.
SWEENEY TODD - The Decade's Best!
EVITA - Not as good as SWEENEY or COMPANY or ALNM or ACL
+++BEST SHOW 1970-79 : SWEENEY TODD, WEAKEST: RAISIN
42ND STREET - Enjyable Fluff but no EVITA
NINE - Smart, original, better than 42ND
CATS - Great staging but no book. Not as good as 42nd or EVITA
LA CAGE - Better than CATS. Not as good as NINE.
BIG RIVER - Not as good as LA CAGE
MYSTERY OF EDWIN DROOD - Better than BIG RIV but not much
LES MIZ - Best so far this Decade
PHANTOM OF THE OPERA - Better than CATS
JEROME ROBBINS BROADWAY - Revue. Nothing original.
CITY OF ANGELS - Clever, funny. No LES MIZ or NINE though.
+++BEST SHOW 1980-89 : LES MISEARBLES, WEAKEST: CATS
WILL ROGERS FOLLIES - Weakest show since CATS
CRAZY FOR YOU - staged with style, better than WRF
KISS OF SPIDER WOMAN - best new musical since CITY OF ANGELS
PASSION - Difficult but rewarding. Better than SPIDER WOMAN
SUNSET BLVD - WORST show to win Best Musical ever!!
RENT - Larson didn't have a chance to revise, some flaws remain
LION KING - Better than WRF or CATS.
FOSSE - Revue. Nothing new or original.
+++BEST SHOW 1990-99 : PASSION (RENT if it had been fixed!)
(RAGTIME was the decade's best but it didn't win the Tony!!!)
WORST SHOW OF THE DECADE: SUNSET BLVD.
CONTACT - is NOT a musical. It's a dance piece.
PRODUCERS - Most entertaining show since CITY OF ANGELS
THOROUGHLY MODERN MILLIE - weak stage version of movie
HAIRSPRAY - good stage version of stupid movie
AVE Q - Better than HAIRSPRAY or MILLIE. Not as good as PROD.
SPAMALOT - Not as good as Q, better than MILLIE or HSPR
+++BEST SHOW 2000-2005: PRODUCERS, WEAKEST: MILLIE
Cast albums are NOT "soundtracks."
Live theatre does not use a "soundtrack." If it did, it wouldn't be live theatre!
I host a weekly one-hour radio program featuring cast album selections as well as songs by cabaret, jazz and theatre artists. The program, FRONT ROW CENTRE is heard Sundays 9 to 10 am and also Saturdays from 8 to 9 am (eastern times) on www.proudfm.com