Going to stay positive here. The things Nintendo did last generation that I appreciated:
1) Restored my faith in Mario Kart. Mario Kart 64 was a glitchy mess. I know a lot of people liked Super Circuit but it didn't quite squeeze my weasel. Then came Double Dash which could best be described as "offensively and aggressively shitty." It seemed like the franchise peaked with the original. Then Mario Kart DS came out and changed my opinion. I loved this game. It should also be noted that this was the first real good game on the DS since Mario 64 DS. I got tired of NeoGAF's recommendations, where any game that wasn't total shit was solid gold. This game looked great, had a lot of good courses, and seemed like a full fledged console title in handheld form. The Wii game was a step or two back but MK7 is a return to greatness.
2) Wii Sports. My roommates and I would go to the gym and when we'd come back, we'd play about an hour of Wii Golf (usually about three rounds). We talked so much shit to each other and we would get really into the shit talking. There wasn't a sacred cow that wasn't hideously butchered. We played it every day we went lifting so about 5-6 times a week for about three months. Those days ended when spring semester was over and nobody ever had an interest in playing it again. It was just one of those things...
3) Mario Galaxy really gripped me. I got my Wii when winter vacation just got started. So I had three weeks to play this fucking awesome game without the bullshit known as engineering classes. Since it was a college town, the grocery store I worked at was dead. So I'd work, leave early, grabbed a liter container of this:

and played Galaxy for the rest of the day (this was back when I had a better metabolism and could put a liter away a day and not gain a pound; also this awesome form of Starbucks ice cream is no longer available, there's some shittier version out now). One point in the game captivated me so much that I accidentally played it through the night and went to work without any sleep

4) My sister's dumbass stepkids are a huge hassle. Well, I rewii'd for Christmas 2011 and it was the bundle that came with NSMB Wii. Well, once they found out that we had a Wii they wanted to play it. My parents, angry assholes that they are, were against it, thinking it would only rile them up further. I insisted on hooking it up and wouldn't you know it, the kids immediately became docile once they started playing. They played co-op well together and we all sat on the couch and more or less played cheerleader. It was a great time and everyone had fun. So yes, the Wii saved Christmas for us one year :3