I still listen to all of the following regularly. Castlevania IV and ActRaiser in particular have pretty incredible arrangement and sound design for being so early in the system's life.

From the Super NES:

  - Super Castlevania IV
  - ActRaiser
  - Axelay
  - StarFox
  - Gradius III
  - Teenage Mutant Ninja Turtles IV: Turtles In Time
  - U.N. Squadron
  - Final Fantasy VI (III in the US)

From the Genesis:

  - Sonic 2
  - Sonic 3 & Knuckles
  - Ranger-X

From the Unreal Tournament Soundtrack:

  08 - Botmca
  11 - Enigma
  17 - Skyward Fire
  28 - Foregone Destruction

Note: I think there's something up with chipplayer.js' tracker playback because some of these Unreal Tournament tracks were definitely playing slower than they should.