I'm ok with spoilers. And since it's been such a phenomenon I've seen bits and pieces here and there (I know what the Red Wedding is for example).
I'm in the middle of season 2 and just finished the episode where someone (I don't know yet) stole Dany's dragons. I think that is 5 in, maybe 6. So I have the second half of season 2 to go still. But at this point, my observations:
Ed Stark was the best character in the show. Still. His younger daughter is right behind him. None of the people vying to be king are of any entertaining value to me at this point. They all are kinda meh. The Lannisters are massively entertaining though, and Tyrion (the dwarf? whatever his name is) is right behind theyounger Stark girl as the best character. And after him there isn't anyone close yet. I go back and forth with Dany. Her arc of being married and falling in love with the guy wasn't well developed, but I'm sure it was in the books. She just kinda went from hating it to loving it. Although she is playing the unsure leader role fairly well.
I've enjoyed the overall political rivalry arc that is running through the actual game of thrones and how the nobel families deal with each other. The mystic stuff with Stannis' red head is going to annoy me I think. I'd rather it be more political intrigue than World of Warcraft, but I'm allowing for a little fantasy. Oh, and the whole Night's Watch, guys in black, Jon Snow and that entire story line is not enjoyable for me at all. I find myself wanted to fast forward through those scenes.
B so far.