I thought Season 8 & 3 were probably the best seasons, I disliked the rest but I also disliked the way Season 8 ended. Michael started off as a strong character, and the travel into his past was knowledgeable and fun, but he also had the power to travel through time, so how could he die so easily? It was such a build up to the last episode then just ended with a huge lack luster of a battle.
I don't know but I would only recommend season's 3 & 8. Only reason I would recommend season 1 (which is disliked because the writing seemed all over the place) is because of its connection to season 8.