From ANH, it’s a tied between Luke X-wing pilot because had three of them two of which I custom by painting them to make Briggs & Wedge using my big brother modelling paint, he nearly killed me for touching his stuff & not for the first time or the last. And secondly the Stormtrooper, I was the first kid in my village that came to the realisation that having one stormtrooper going up against Luke or Han was a duel, two stormtroopers going up against Luke, Han & Leia was gunfight, having six or seven stormtroopers going up against our heroes was a battle.
From TESB, Boba Fett because it Boba Fett & a very close second was my first Ugnaught, you don’t know how many times the Imperial & later the Ewoks tried to put an apple in his mouth before cooking him over an open fire.
From ROTJ, Rebel Commando because I had also had a small army of them & Salacious Crumb because he was always causing trouble with Yoda, Wicket, Piggy the Ugnaught & Robin the Jawa.