I enjoy today's rigs and rigs of the 1970's. They both look amazing even though there are more new rigs than 70's rigs and they have more comfort,power,and efficient. I enjoy the way the rigs of the 70's worked back in their time. They ran through the 80's also and stopped around the 90's somehow. I enjoyed reading about the rigs back then also including looking through Hank's Truck Pictures and seeing the life of them. Here's my list of favorites from the 70's and Now:
Now
Peterbilt 389
Peterbilt 388
Peterbilt 379
Kenworth T660
Kenworth W900L
Kenworth T600
Kenworth T800
Freightliner Casadia
Freightliner Coronado
International Prostar
International 9200
International 9400
Western Star 4900 EX
Western Star 4900 SA
Western Star 6900 XD
Mack CH
Mack Rawhide
Mack Vision
70's
Peterbilt 352H
Peterbilt 352
Peterbilt 352-110
Peterbilt 359
Peterbilt 289
Kenworth K100 Aerodyne
Kenworth K100
Kenworth K100 VIT
Kenworth W900A
Kenworth C500
Freightliner Powerliner
Freightliner FLC Conventional
International Transtar
International Transtar II
International Transtar 4300
International Fleetstar
Western Star COE
Mack F700
Mack FS700L
Mack RS700L
Mack R600
Mack Cruiseliner
Mack MR
White-Freightliner COE
White-Freightliner Conventional
White-Western Star Conventional
GMC Astro
GMC General
GMC Snub Nose
Chevrolet Titan
Chevrolet Bison
Chevrolet Conventional
Marmon COE
Marmon Conventional
Brockway COE
Brockway Conventional
Dodge L1000
Dodge CNT800
Dodge Bighorn
FWD COE
FWD Conventional
White Road Commander
White Road Commander II
White Road Boss
Hayes Clipper COE
Hayes Clipper Conventional
Diamond Reo Royale
Diamond Reo Raider
Diamond Reo Conventional
Ford WT9000
Ford W9000
Ford Louisville
Ford LTL9000
Basically that's my list. Hopefully I will someday make a couple companies of these.

is a 96 considered old? if so it's #1
i like the 70's w900a...driven a few of em
even the 80's version of the w9 isnt bad....just ask brickman...he gets to drive one every now an then
as far as the cabovers.....you can keep em....ive driven 1 or two when i was wrenchin (road test) and hated every bone jarring minute of it
my all time favorite was driving a 1963 KW W900....first year of the tilt hood...had a bc3 cummins, 5+4 trans, aluninum frame and huge stacks...you could, no kidding, black out a road if you skipped too many gears...the only down side was it had an ancient holmes wrecker body on it, but man would it winch the guts out (we broke the frame twice while winching)