Have you guys checked out IGN's Top 100 List? You probably won't agree with many of them, but they rated the games based on how masterful they were when they were released and the influence they've have on all of gaming.
Their Top 3 were as follows:
3.) Tetris
2.) Zelda; Ocarina of Time
3.) Super Mario Bros.
And, honestly, I have to agree with those three being three of the most influencial games of all time, as well as ones made very well.
Here's what IGN had to say about them:
Name: Tetris
Platform: Multiple Systems
Developer: Pajitnov/Pavlovsky/Gerasimov
Publisher: Various
Year Released: 1986
Why it Made the Top 100 List: In the mid-'80s a group of computer engineers designed Tetris in secret at the Russian Academy of Sciences. Thankfully, creator Alexey Pajitnov smuggled the hopelessly addictive videogame out of the Soviet Union and unleashed it across the world. Tetris is made timeless and brilliant because of its instant accessibility -- unlike chess, its motherland cousin. Rules are simple: players stack a series of falling, differently shaped "Tetramino" blocks in a well and attempt to keep it from filling up by clearing solid horizontal lines. Most Tetris players experience complete escapism, which is why many corporations and educational institutions loathe its existence. Tetris has gone on to inspire countless variations and will forever influence puzzle-based videogames.
Name: Legend of Zelda: Ocarina of Time
Platform: Nintendo 64
Developer: Nintendo EAD
Publisher: Nintendo
Year Released: 1998
Why it Made our Top 100 List: Considered by many critics to be the greatest game ever made, Nintendo's Legend of Zelda: Ocarina of Time is one of only a handful of games to receive a perfect IGN rating. The masterpiece, which stars hero Link in both child and teenage form, helped pave the way for 3D adventure games, but it will likely be remembered and adored for two other reasons: first, it reinvented Nintendo's famed Zelda franchise and actually made it better. And second, it showed Nintendo 64 fans and the larger videogame community that as revolutionary and pretty as Super Mario 64 was, Nintendo still had some serious magic in its hefty bag of tricks. Ocarina of Time is an epic undertaking shining with tight control, ingenious level design and intuitive play mechanics. It remains one of the all-time most innovative adventure outings to date.
Name: Super Mario Bros.
Platform: NES
Developer: Nintendo EAD
Publisher: Nintendo
Year Released: 1985
Why it Made our Top 100 List: Nintendo's beloved 2D platformer was number one on our Top 100 list a couple of years ago, and it had no problem holding onto the top spot in this year's vote. Perhaps the classic game remains an IGN favorite because it helped revitalize the videogame industry in the post-Atari era of gloom and doom. Or maybe it's cherished above all others because it so effortlessly represents everything that makes us love Nintendo-developed games in general: an unwavering attention to play control and level design. The game, which stars Nintendo's classic mascot hero Mario in 30-some levels of inspired 2D platforming, introduced millions of players to videogames and left them captivated. Super Mario Bros. remains one of the most pioneering and influential titles to date. More importantly, it's every bit as addictive, enjoyable, and satisfying today as it was two decades ago.
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Here's something I'd like to add about Mario Bros:
Mario Bros. was about the first video game that truly showed gamers that OTHER WORLDS could 'live' inside games. The Mushroom Kingdom was a fictional place you could vist--it wasn't a random area in space where you shot things, or a simple blue maze with yellow dots.
The point of Mario's big platformng adventure was not to get a high score, but to explore this vast (at the time) world. When I first played that game, I realized just how wondrous gaming could be, creating a world within a bunch of programming.
Without that core game, I'm not sure Nintendo would still exist, and, if so, they would be dramatically different. Gaming as we know it would be different. How much is hard to say, but I'm sure that othe classics like Mario Bros. 3 and OoT wouldn't exist.
Anyway, that's my opinion, for what it's worth.