No exact numbers, just my 10 most played games in order
1. Super Smash Bros for Wii U
2. Netflix
3. Mario Kart 8
4. Zelda: Wind Waker HD
5. Internet Browser
6 Super Mario 3D World (Trying for 100%)
7. Earthbound
8. New Super Mario Bros U
9. Donkey Kong Country Tropical Freeze
10. Miiverse

nah! I use it because sometimes I don't want to leave my bed

Just counting retail games.

Mass Effect 3 (768:38)
Watch Dogs (151:01)
Bayonetta 2 (112:57)
Rayman Legends (95:39)
Hyrule Warriors (76:00)
Assassin's Creed IV Black Flag (58:16)
Need for Speed Most Wanted (40:35)
Donkey Kong Country Tropical Freeze (34:08)
Mario Kart 8 (33:18)
Super Mario 3D World (32:00)

Smash is 11th (28:05)

MohammadBadir said: How is that possible when there are less than 10 games on the WiiU? /s In all seriousness, I don't own one

Wait, what? :p

Okay, here's my list:
1. Wind Waker HD: 88h 33m
2. Mario Kart 8: 81h 10m
3. Super Smash Bros. Wii U: 78h 55m
4. Super Mario 3D World: 55h 30m
5. Hyrule Warriors: 48h 36m
6. New Super Mario Bros. U + New Super Luigi U: 40h 57m
7. Donkey Kong Country: Tropical Freeze: 40h 19m
8. Bayonetta 2: 30h 21m
9. The Wonderful 101: 28h 02m
10. Pikmin 3: 25h 42m

Reflecting back on this makes me realize how great of value Nintendo games have. And most of these numbers will only go up.

Honestly, the only thing I touch on my Wii U nowadays is Smash Wii U.

Let's go!
1. Mario Kart 8 --> 83:34
2. Hyrule Warriors --> 47:23
3. Super Mario 3D World --> 33:46
4. Earthbound --> 30:43
5. Super Smash Bros. --> 30:42
6. Darksiders II --> 29:04
7. Bayonetta --> 24:32
8. Wind Waker HD --> 21:06
9. DK Country: Tropical Freeze --> 20:25
10. The Wonderful 101 --> 17:15

WiiU is such an underrated console... I have nearly 40 games, a lot of them around the 10 hours mark.

Such a shame that Nintendo didn't use a refined form of the Nintendo 3DS Activity Log. That one had such great organization options, while the Wii U version seems to be lacking.

Will be interesting to see what my stats are though, will have to come back and update later :)

1. Internet Browser - 2310:45+

2. Miiverse - 300:26

3. Smash Bros - 143:02

4. Netflix - 118:30

5. Mario Kart 8 - 78:57

6. Mario 3D World - 32:12

7. Hyrule Warriors - 20:14

8. Pikmin 3 - 20:12

9. eShop - 15:12

10. Captain Toad - 13:54

0. Internet Browser 278:11***

1. Mario Kart 8 - 70:53
2. Deus Ex: Human Rev. - 53:55
3. Earthbound - 53:39
4. Wind Waker HD - 50:28
5. Assassin's Creed IV - 47:48
6. Sonic Lost World - 37:19
7. Injustice: Gods Among Us - 37:03
8. Super Mario 3D World - 33:57
9. Super Metroid - 29:05
10. Darksiders II - 24:41

*** There was a long stretch of time (like a month) where my macbook was broken, and my Wii U was my only way to connect to the internet aside from my phone was my Wii U. 99% of those hours come from that time period.