Before some scratch their head in wonderment one of the chief criteria were only 5 per year (from 1996 on). Many of these I chose because they were scores I picked up after seeing a film (which explains some of the stranger choices) and many of these I find myself listening to frequently. This is not a "best of the decade list by any means.I've listed mine by year...you may wish to see how your own "Top 5" playlist evolves.
1990
Barry: Dances with Wolves
Burwell: Miller's Crossing
Elfman: Edward Scissorhands
Goldsmith: Total Recall
Poledouris: The Hunt for Red October
1991
Doyle: Dead Again
Eidelman: Star Trek VI, The Undiscovered Country
Howard: The Prince of Tides
Williams: Hook
JFK
1992
Barry: Chaplin
Doyle: Indochine
Elfman: Batman Returns
T. Newman: Scent of a Woman
Williams: Far and Away
1993
Bernstein: The Age of Innocence
Broughton: Tombstone
Doyle: Much Ado About Nothing
Williams: Jurrassic Park
Schindler's List
1994
Arnold: Stargate
Elfman: Black Beauty
Goldenthal: Interview with a Vampire
T. Newman: The Shawshank Redemption
Silvestri: Forest Gump
1995
Burwell: Rob Roy
Elfman: Dolores Claiborne
Goldsmith: First Knight
Williams: Nixon
Zimmer: Crimson Tide
1996
Arnold: Independence Day
Edelman: Dragonheart
Kempel: The Arrival
D. Newman: The Phantom
Williams: Sleepers
1997
Beltrami: Mimic
Burwell: Gods and Monsters (released 1998)
Corigliano: The Red Violin (released 1999)
Goldenthal: Sphere
Goldsmith: The Edge
1998
Cmiral: Ronin
Jones: Dark City
R. Newman: Pleasantville
Warbeck: Shakespeare in Love
Williams: Saving Private Ryan
1999
Burwell: Being John Malkovich
Davis: The Matrix
Goldenthal: Titus (released 2000)
Howard: The Sixth Sense
Williams: Star Wars, Episode I-The Phantom Menace
2000
Dun: Crouching Tiger, Hidden Dragon
Goldsmith: Hollow Man
Gregson-Williams/Powell: Chicken Run
Howard: Dinosaur
Williams: The Patriot