I adored season one, exactly because it developed the same time-line there is in the book. No strange detours or story adaptations for the sake of the screen format. It was a dream come true to see GRR Martin works coming to screen.
With the huge success Season 1 got, it exposed the show to larger audiences which, in return focuses the production into a more risk management mode and by risk management I mean handling the supposed viewers expectations. Say, if a viewer don't get the weekly fix of favourite character(s) appearance, they'll just start to whine and change channel. Hence the remake in the writing, stuffing characters in episodes they do not belong to appear, changing their stories, compressing stories from book 3 (even 4) into Season 2. While I loved the books, I'm not a fanatic, I can accept screen adaptation as long as they don't wear out the characters. The major complaint I have with Season 2 is that it didn't give enough space to the characters to be developed properly. With 1 or 2 expectations all the new faces in this Season 2 are just short boring and as you damo2000 were saying, even great characters we loved from Season 1 are being washed out (Arya, Littlefinger).
For Season 3 I think I'm gona wait until it ends and make a hole in my couch for an weekend to watch all the episodes. Basically visually overcharging the brain and giving it less time to be exposed to over analysis of the plot . It's just a tv show after all
