Looking at the following publisher breakdown, it's obvious that even though about 85% of my Wii game library is third party, Nintendo still wins handily on a publisher by publisher basis. (no reserved games were included in this list)
Other big wins are Sega and Electronic Arts, but I actually have been easing off on EA purchases, in the future they may become less important a third party for me because they have offered few Wii games to appeal to me as of late. Sega, on the other hand, has been great, constant, and will floursih in the future with great game sin the pipeline.
Also, Capcom has some very steady offerings. Activision should be in trouble though because after buying 3 games from them near launch, it took me a year to buy a fourth in GH3. Ubisoft is in a very similar situation with no titles bought for that year between launch and No More Heroes. Konami benefits from having Hudson's titles lumped in with them, and Atlus' Trauma Center games put them above the rest of 1-game publishers.
Oh! And EPIC FAIL to Bandai Namco. You're a MAJOR publisher, but you've only got me to buy 1 game?!?! And where are the gundam games, hey? I would've bought BOTH that Gundam SD game, and especially salivate for Gundam 0079. Geez...
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Nintendo (9 games)
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(See my post on the first page)
Sega (5 Games)
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Ghost Squad
Alien Syndrome
NiGHTS
Mario & Sonic At The Olympic Games
Sonic & The Secret Rings
Electronic Arts (5 Games)
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My Sims
Medal of Honor Heroes 2
The Godfather
Harry Potter & The Order of the Phoenix
Madden NFL 07
Capcom (4 Games)
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Resident Evil 4
Harvey Birdman: Attorney At Law
Resident Evil: Umbrella Chronicles
Zack & Wiki
Activision (4 Games)
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Guitar Hero 3
Tony Hawk's Downhill Jam
Call of Duty 3
Marvel Ultimate Alliance
Konami (4 Games) (Also publishes Hudson titles in NA)
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Dewy's Adventure
Elebits
Dance Dance Revolution: Hottest Party
Kororinpa Marble Mania
Ubisoft (4 Games)
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Red Steel
Far Cry
Rayman: Raving Rabbids
No More Heroes(In Transit)
Atlus (2 Games)
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Trauma Center: New Blood
Trauma Center: Second Opinion
Global Star (1 Game) (owned by TakeTwo)
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Carnival Games
Rockstar (1 Game) (Owned by Take-Two)
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ManHunt 2
2K Sports (1 Game)
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MLB Power Pros
Vivendi Games (1 Games)
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Scarface
Bethesda (1 Game)
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Star Trek: Conquest
Destination Software Inc. (1 Games)
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Sea Monsters
Atari (1 Game)
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Godzilla: Unleased
Eidos (1 Game)
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Lara Croft Tomb Raider: Anniversary
KOEI (1 Game)
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Samurai Warriors Katana
Conspiracy Entertainment (1 Game)
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Ninjabread Man
Sierra (1 Game)
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Crash of the Titans
D3 Publisher (1 Game)
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Dragon Blade
Bandai Namco (1 Game)
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Soul Calibur Legends
Midway (1 Game)
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Mortal Kombat Armageddon
SNK (1 Game)
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Metal Slug Anthology
Majesco (1 Game)
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Cooking Mama
Codemasters (1 Game)
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Heatseeker
Tecmo (1 Game)
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Super Swing Golf