My top most played games/channels:
1. Super Smash Bros. Brawl
2. The Conduit
3. Internet channel

When I get Monster Hunter 3, I think it will change the list.

Somehow my most played game is......... Red Steel!! -_-
Yes, the first.

i acturally enjoyed that game lol

I played the Half life franchise over a 100 times

I dont know , no iternet at home , but i would like to run this test on my Wii ...i think that the result would be SSBB in first , Galaxy second , and the rest i make no idea ...

My highest is Brawl with 1200 hours.

If i count only the hours i played it on my Wii is not so much , but in my life i think its over 300 to 500 hours or even more i beat the got dam game 16 times ...on my N64 on the cube , on the PC and for last 2 times on Wii's VC and every single time was awesome just like it was the first time. the same goes to TP i beat it 8 times, and first time was with no memory card on the cube ... took me 20 hours (yeah almost a full day with no sleep ...was awesome ....good memories)

Top 20 time! :O

1. Super Smash Bros. Brawl (536 Hours/137 Times) 3.91 Hours per play
2. Animal Crossing: City Folk (219 Hours/138 Times) 1.69 Hours per play
3. Fire Emblem: Radiant Dawn (85 Hours/12 Times) 7.08 Hours per play
4. Super Mario Galaxy (74 Hours/33 Times) 2.24 Hours per play
5. Mario Kart Wii (68 Hours/38 Times) 1.79 Hours per play
6. Okami (61 Hours/14 Times) 4.38 Hours per play
7. Guitar Hero III: Legends of Rock (52 Hours/34 Times) 1.53 Hours per play
8. Guitar Hero: World Tour (51 Hours/34 Times) 1.50 Hours per play
9. Metroid Prime 3: Corruption (50 Hours/18 Times) 2.78 Hours per play
10. Wii Sports (47 Hours/52 Times) .90 Hours per play
11. The Legend of Zelda: Twilight Princess (46 Hours/18 Times) 2.56 Hours per play
12. Wii Fit (44 Hours/27 Times) 1.63 Hours per play
13. Super Paper Mario (39 Hours/14 Times) 2.79 Hours per play
14. New Super Mario Bros. Wii (38 Hours/16 Times) 2.38 Hours per play
15. Mario Kart 64 (35 Hours/14 Times) 2.5 Hours per play
16. Pokemon Rumble (31 Hours/5 Times) 6.2 Hours per play
17. Silent Hill: Shattered Memories (27 Hours/2 Times) 13.5 Hours per play
18. Muramasa: The Demon Blade (26 Hours/9 Times) 2.89 Hours per play
19. Super Metroid (23 Hours/3 Times) 7.67 Hours per play
20. Call of Duty: Modern Warfare Reflex Edition (23 Hours/12 Times) 1.92 Hours per play

Resident Evil 4: Wii Edition would be in there (more than 50 hours probably) if they actually tracked the game...

According to the Nintendo Channel my most played games are:

1)Mario Kart Wii- 231 hours and 55 minutes (179 times)
2)Super Smash Bros. Brawl- 139 hours and 22 minutes (87 times)
3)Metroid Prime Trilogy- 86 hours and 5 minutes (56 times)
4)Super Mario Galaxy- 47 hours and 58 minutes (28 times)
5)Mario Party 8- 31 hours and 45 minutes (24 times)

Note: This is 5 out of 24 registered games/channels that I own. Some of my games are not registered in the Nintendo Channel.

Mario Kart about 450 hours
Wii Sports about 300 hours
Wii Sports Resort about 150 hours
Zelda TP about 150 hours
NSMBW about 100 hours
Internet Channel about 100 hours
several over 50 hours