Who is Sony's biggest competitor? MS

Who is Nintendo's biggest Competitor? Themselves

Who is Microsoft's biggest competitor? Sony

Who is Valve's biggest Competitor? Their inability to follow on promises

Is Apple a competitor? If so who is Apple's Biggest Competitor? Samsung

Different companies in different markets. Apple and Samsung use Sony products for their smartphone cameras but are also competing with them. Sony uses Windows on their Vaios but  competing with MS in the games industry.

Marvel Vs. Capcom
Mortal Kombat Vs. DC Universe
Plants Vs. Zombies
Final Fantasy Vs. XIII

(lol)

Best post of the thread so far^^

My list:

Sony: Themselves
Nintendo: Themselves
Microsoft: Sony
Apple: Samsung
Valve: No competition
Ouya: Actual production
Gamestick: See above+all smartphones

Sony(The Videogame Company) and Microsoft(The Videogame Compay)'s biggest threat has always been Nintendo they've even recognized this themselves. You don't simply enter the videogame market without knowing of Nintendo.

Apple's biggest threat is themselves, you can only go so far with a phone... unless we get holographic imaging:D

Nintendo's Threat is of course mobile gaming found on mobile phones. Although I hope people know that when Nintendo sells $40 3DS games they're making more money than a company that releases a free game. I can't believe people bypass this point

we'll never have a conversation,if we keep agreeing like this. i think it will get some advertisment. maybe a viewing on one of the late shows. i can hear Jay Leno saying the name now lol.