How you pictured Anakin pre-PT
As a noble & likeable man with extraordinary pilot skills. He has enthusiastic ideals about peace, right and order. With the help of his new friend, the Jedi Knight Obi-Wan Kenobi, Anakin becomes a Jedi. He hopes to end the Clone Wars which disrupts the republic for quite some years now. Over the past years of the war the republic is close to a downfall. In time pressure Anakin starts looking for faster and more effective ways to end the war. During a crucial key moment that involves a Senator named Palpatine, Anakin tastes & uses the Dark Side of the Force. With the power of the Dark Side he finally achieves what the Jedi failed to do: Anakin ends the long-lasting Clone Wars. Eventually Anakin refuses to give up the Dark Side of the Force which ignites the extinction of the Jedi, the rise of the Empire and a certain duel with his former friend Obi-Wan Kenobi.
As a child i always assumed that Anakin was the first Jedi ever, who defected to the Dark Side. Despite being a Sith he still uses the typical Jedi weapon: a Lightsaber with the unusual color red.