Odin - myth or fact?

[PseRamesses]

During my research for the Fury of the Northmen mod (that never got released) I´ve read tons of books, visited zillions of sites and one thing that always intrigued me was the origins of the viking gods or "Asarna". Where they real life people or just mythological characters?
Take the depiction made by Snorre Sturlasson in his "Ynlingasaga". He describes how a tribal warlord named Oden left his home in Asgård in the country of Asaland or Asahem east of the river Tanakvist (Tanais=Don?). His motive for leaving his homeland was that being a foreseeing witchking he knew that his offspring where destine to rule the north expanses of the world. His castle was located somewhere in the vincinity of the Black Sea where he had large lands in "Turkaland" as Snorre states. So Odin and his people packed up and left fighting through Gårdarike (Russia) and Saxland (Germany) and up through Denmark (hence the city of Odense). After many adventures and escapades he ends up in Sigtuna (slightly northwest of Stockholm) where he built a grand court and held "blot".

On the other hand, according to old kingslists Odin was really a man called Sigge Fridulfsson who immigrated to Sweden around 100bc. and had a long row of successful sons:
Sigurlam - king of Russia, Weldeg - king of east saxland, Beldeg - king of West Pfalia, Sigge - king of the Franks, Skjöld - king of Denmark, Seminger - king of Norway, Gaute - king of the Götar, Yngve - king of the Turks, Thor who lived in Thrudvanger and finally Balder who lived in Breidablick.
Now, with theese accomplishments and with that family influence over the world there´s no wonder Odin and his sons got elevated into deities later on. This Empire of Odin could it be the lost Atlantis? Just speculative to get you going but the Egyptians, Greeks and later on the Romans all states that Scandinavia is an island, right?

When it comes to archaeological evidence there´s a sudden boom in greavefields and artefacts from this period 100bc - 300ad. so either a large immigration or a population boom is feasible. Odin was also the one who brought the runes to the people and spearheads with runes has been found on Gotland dating back to aleast 200ad. Many early finds on Gotland is so highly developed and bears resemblances to stonecutters in the middle-east. Some argue that the first stone cutters/ carvers actually came from the middle-east. Did Odin bring them with him?