In the last 5 years (and in size class deluxe and above)
Starscream (21)
- Classics/Universe (original, Universe repaint, western Masterpiece release)
- Henkei (Normal and Ghost)
- Revenge of the Fallen (Voyager x2, Leader)
- Movie 2007 (Voyager x4 - normal, Premium, G1 colours, Deep Space)
- Animated (Voyager and Activator)
- Cybertron (Voyager and Supreme)
- Energon (normal and G1 colours)
- Titanium
- Other - Masterpiece Ghost, Masterpiece Animated Colours Japanese release
Skywarp (8)
- Classics/Universe (original deluxe and western Masterpiece release)
- Henkei
- Revenge of the Fallen (it's a repaint of TF07 Starscream)
- Animated
- Titanium
- Cybertron (repaint of Thundercracker)
- Other - Masterpiece
Thundercracker (7)
- Movie 2007
- Cybertron
- Henkei
- Titanium
- Animated (Activator)
- Other - Masterpiece, Botcon 2007
- Upcoming - Animated voyager release stuck in limbo. Samples seen but no confirmation on its release.
Dirge (5 + 1 upcoming)
- Revenge of the Fallen
- Henkei
- Classics/Universe (repaint of Cybertron Voyager Starscream, came in 2 pack with Roadbuster)
- Other - Botcon 2007
- Animated (Activator)
- Upcoming - Dirge is confirmed for future waves of the Generations line.
Ramjet (3)
- Classics
- Henkei
- Revenge of the Fallen (Repaint of 2007 Starscream Voyager)
Thrust (5)
- Generations
- Henkei
- Botcon
- Revenge of the Fallen
- Titanium
Sunstorm (2)
- Titanium
- Animated (Voyager)
There are numerous legend and minicon versions of the above characters but that would have made creating the list quite a large and tedious undertaking.