So...I just finished NSMB Wii. About to beat Nyxquest.

I've already purchased the following titles that I have yet to play:

Wii: Dawn of Discovery, Punch Out, Shaun White Snowboarding, Sky Crawlers: The Innocent Aces, Tiger Woods PGA Tour 10, Wii Sports Resort

I have a bunch of unopened DS games to get through as well...Civilization Revolution, Might & Magic: Clash of Heroes, Layton 2, Scribblenauts, The World Ends with You...and I have yet to finish Yoshi's Island DS

Looking back, I went through/played alot of the following games in 2009: I started NSMB Wii in late December having finished Little King Story, Muramasa, Lost Winds, Art Style Orbient, Swords & Soldiers, Mega Man 9, De Blob, Boom Blox, World of Goo, Wii Fit, Sin & Punishment, My Life as a Dark Lord, and MLB Power Pros 2008 in the year.

My plan for 2010 is something like this:

Play Eight Wii Games (Dawn of Discovery, Monster Hunter 3, NSMB Wii, Punch Out, Sin & Punishment 2, Sky Crawlers, Tiger Woods, Wii Sports Resort)

Play Four DS Games (Yoshi's Island, Scribblenauts, Layton 2, Civilization Revolution)

Play Four WiiWare Games (Bit Trip Beat, Flowerworks, Max & The Magic Marker, Sonic the Hedgehog 4)

What should I play next? Give me a ranking for those of you who have played what I want to play...because after this year I'm essentially set through 2012 or 2013 with content as my wishlist is 19 games and I got through 13 in 2009. I already have an 11 game backlog too, and more will be announced at E3.

You really dont play ANYTHING not on a Nintendo system...

Play what ever you feel like.

Dont limit your self to beating one game, play them all.

I would go with Punch Out next and then Tiger Woods.

I got so many games I have yet to play as well. 

i cannot believe you can play that many nintendo games, personally i wouldnt be able to play 99% of those, anyways
OT: i would play The World Ends with You

You could just play a few during the same smallish time frame. I do that a lot and it seems to make it more fun. Can be a bit much though if they are story driven games.

Out of these? TWEWY.

I agree. Just play whatever you want at the time. Don't worry about beating one at a time.

Yoshi Island is a great platformer. I would play that if I were you. It's too bad the soundtrack sucks compared to the snes game though.

I'm with 3 of the 4(errr, 5 now) suggestions. The World Ends With You all the way. I feel your pain on having a large backlog though. At least I've learned that it takes me quite some time to get through my collection, and now I rarely buy games when they launch. My wallet thanks me.