The lacklustre years continued for me. Especially since I wasn't initially interested in Wii. Like I wrote earlier console gaming, both home and handheld, were far from my mind at this point.
From the poll, I only played Zelda Twilight Princess when it released. The game was great though, I was glad Nintendo got back to a style (not necessarily "graphical") that suited me better after The Wind Waker had disappointed me years earlier. Even in the greater context of the series, this game features what are probably the best dungeons and some of the best bosses in it, and maybe even in gaming as a whole. The Temple of Time, the City in the Sky, the Snowpeak Ruins and my personal favourite the Arbiter's Grounds along with the epic Stallord boss are piece by piece, masterpieces. And it wasn't even like the dungeons of the first act were slouches either. They also feature some of the most unique item uses. I played it on GameCube initially, because that's the console I still had laying around. It needed some dusting off though. Later, when I did get a Wii, I replayed the game's Wii version multiple times. The motion control in that was simple but effective. The game would repair some of my faith in both Nintendo and the 'validity' of console gaming.
Next to Twilight Princess I would later also play Wii Sports and New Super Mario Bros obviously after we finally had a Wii, and tiny bits of Okami (like, a tiny bit over a decade later) and The Elder Scrolls Oblivion. From the 'other' list I only played small chunks of Call of Duty 3 when we got a PS3, before I realised these kinds of fps's are barely playable with a controller, and returned to CoD1 and 2 on PC. I also had Wii Play on Wii because it came with an additional Wiimote (if I remember correctly), but I hardly played that game.
So this year was basically all Twilight Princess for me, and PC didn't bring much that interested me either while I just continued playing older games, except for one other new game. That game was Medieval II: Total War. I was already into Rome Total War very much by this point, and Medieval II was as excellent of a game. Based on Rome, I could pick it up and play immediately, and it opened up my interest in medieval history. Or rather re-opened this interest because I had been interested in the period before as a child because "castles are cool". I played Medieval II a lot, and for years. It is hard to say which one of the two, Rome or Medieval II, is 'better', because they are so similar, but I would often still say 'Rome'. It is in the tiniest of details; like how in Rome the regions all have an actual, accurate name instead of being called "x Region". I would later go on to fidle with the game files to add more regions and actually give them real names. Rome got a great (and underrated I'd say) sequel many years later, and I'm still for Medieval II to finally get one as well.
Still though, because Twilight Princess reminded me of earlier days when "gaming was good", console gaming at least, and gave me a spark of hope that it might again be sometime in the future, and just simply because it was an awesome game, my vote is The Legend of Zelda: Twilight Princess.
