At the moment the top 10 would be something like this
Beast Wars Snarl
Animated Grimlock
Animated Cybertron Optimus Prime
Armada Nemesis Prime
Beast Wars Tripredicus Agent
Movie Landmine
Classics Astrotrain
Classics Jetfire
EpII Jedi Starfighter Obi-Wan Kenobi
Cybertron Defence Scattorshot