Some differences:
Base: All vinyl door panels, vinyl backed seats, no glove box light, A-pillar antenna
DX: Upper fabric section on door panels, all cloth seats, glove box light, A-pillar antenna
LE: Upper and lower door fabric sections, all velour cloth seats (or leather), glove box, map and visor lights, powered trunk antenna
There are many other differences, but those are easy to spot.
-Charlie