Starting with Journey into Mystery #83 1962 all the way to present day, what are your 5 absolute favorites starring the god of thunder? I'll get started naming 2 of mine.
Thor 125-130 'The Coming of Hercules'. This story brings Hercules to mainstream marvel and has Thor and Herc's second epic fight. Thor is stripped of half his power and suffers a humiliating defeat to Herc. To make matters worse, Thor has to end up fighting for Herc after Pluto tricks Hercules into taking his place in the netherworld. This leads to a truly epic fight against the hordes of Pluto. This was the beginning of Thor and Herc's friendship. Thor also battles an evil Vizier who steals the Odinpower from Odin. This storyline had everything that made Thor the noblest and fiercest warrior in all the 9 worlds.
Thor 281-300 The Celestial Saga. Eternals, Deviants, and Evil Eye of Odin telling truths and half truths, whats not to like? The first Thor vs Odin fight takes place here along with Zeus vs Zuras. Gilgamesh and Thor slug it out on a Celestial's starship and Gilgamesh finds out a hammerless Thor is a dangerous Thor. Did I mention Odin/Destroyer vs 4TH Host Celestial slobberknocker?
What are your favorite Thor stories?
I agree with many of the other posters - Celestial Saga, Hercules in the classic fight against Pluto, Walt's run etc. Another story I love is one from this black and white issue of Marvel Preview.
Thor is summoned by Viking sailors and tries to save them despite the Norns warning him that they are doomed. It's a beautiful story of the young Prince Thor and the art is magnificent. I have the original somewhere and don't know if it's been reprinted.