Ankin is the choosen one. He has as much tight to the "Son of Suns" title as Luke. We don't know where he was born, but it I think we will find that Luke isn't actually born on Tatooine either.
Also, Anakin sacrafised a lot as well, taking some of the elements of Gundarks list and coparing Luke and Anakin:
1. Never knew his mother ( although Leia remembered some) - Luke
1a.Knew his mother but was seperated from her, may even see her die. - Anakin
2. Raised by an aunt and an uncle whom he didn't seem terribly close to (based on their brief time together in ANH), then finds their smoking skeletons. - Luke
2a.Raised by Strangers (The Jedi) - Anakin
3. Biggs (his closest friend) leaves Tatooine, later dies in battle at Yavin. - Luke
4. Is with Ben for a brief time, sees him die in front of his eyes. - Luke
4a.Betrays his friend??? - Anakin
5. Finds out Vader is his father (cool) - Luke
5a.Never knew he had two children - Anakin
6. Loses his hand. - Luke
6a.Looses half his body - Anakin
7. Fett runs off with Solo. - Luke
8. Returns to complete his training with Yoda, Yoda dies in front of his eyes. - Luke
8a.Betrays his teachers and may well kill most of them. - Anakin
9. On Endor, confesses to Leia and realizes he is putting his friends in danger, turns himself over to Vader. - Luke
9a.On Endor confesses to Luke that he knows it is all wrong but can npot see the GOOD way to defeat the emperor. - Anakin
10. Confronts Emporer, finds out DS weapons operational, knows Bothan spies died in vain. - Luke
10a.Realises that the majority of his life has been in vain and feels he can't be redeemed. - Anakin
11. Cannot conceal Leia's relationship to him from Vader. - Luke
11a.Realises how much he lost. - Anakin
12. Basically beats his father in duel, cuts his hand off. - Luke
12a.Takes his own son to make him see his mistakes, looses a robotic hand. - Anakin
13. Makes Emporer REAL MAD, tortured by force lightning (don't make me go off on that one again). - Luke
14a.Takes force lightening in order to destroy Emporer. - Anakin
14. This is where I give Vader his credit for his redemption and getting rid of his cranky boss.
15. Luke unmasks his father (depressing, really) and watches him die. - Luke
15a.See's his son with his own eyes just ones and then dies. NEVER sees his daughter with his own eyes. - Anakin