Your top 5 muscle cars

[Duck-Stew]

/// Factory specials accepted but nothing modified from delivery. ALL years, makes, models accepted. \\\

For me and in order:
1964 Ford Fairlane Thunderbolt
1969 Chevrolet Camaro ZL1
1967 Ford Mustang Shelby GT500 (427 4-speed)
1970 Plymouth Barracuda 426 Hemi 4-speed
1987 Buick Grand National GNX

I have my reasons.  Open to discussions and edits.

[Speedbag]

In no particular order:

1970 Plymouth Hemi Cuda
1969 Ford Mustang Boss 429
1970 Chevrolet Chevelle SS454 LS6
1968 Mercury Cougar GT-E 428CJ
1970 Pontiac Firebird Trans Am RA IV

(all 4-speed manuals, naturally)

[ZLTFUL]

1966 Chevrolet Malibu 396/PG/Drag Special (Heater delete, battery relocation kit, 4.10 gears...)
1969 Chevrolet Camaro SS/RS (Also a huge fan of the DZ302 Z-28)
1970 Chevrolet Chevelle SS
1963 Ford Fairlane 500
1964 Plymouth Barracuda Fastback

5 is a bit limiting though...because I could add 20 more easily. 

[Duck-Stew]

I wanted the list @ 5 so it would be challenging.

Nice list!