Depends on what I'm playing. Typically I prefer to play shooters online since most SP campaigns I've played lack sufficient challenges. RPGs, on the other hand, I prefer to play solo. Although I enjoy the concept behind MMOs, I can't dedicate the time needed to keep up with online buddies, so single player just works better for me there.
At the end of the day neither format is as important as fun, though.
For me, games are all about the story, so I hate the multiplayer idea, unless, it has some actual story. Single all the way. That said, not all games offer great single player experience, so they have to rely on multiplayer.
I grew up playing my ps1 games by myself so I guess it would be single player. Can't pass up the chance to shout random streams of expletives when someone kills me from behind or "cheat" in a multiplayer game though. Good times
Single player with a great story, hands down. Multiplayer can be fun with a group of friends but it gets old fast. You killed me, ooh, I killed you, wow I killed you again, oh, I just leveled up, ooh you just killed me again, bla bla bla.
Single. But I enjoy split-screen co-op games with my buddies to no end as well. I dont much enjoy online gaming where u pitted off against people but rather where u fight with them against a common enemy. (think Mass Effect 3)
Really, I've found that its rare for a game to be good at both, I like both equally.
Single Player games like Half-Life and Mass Effect are awesome, but games like Battlefield 3 are multiplayer only in my book, the single player was so bad, it hurts me knowing they actually spent time doing it.
But yeah, I like both Single Player and Multiplayer games. I think Single player edges out slightly ahead though as it is more of a personal experience and usually if a game is telling a story, a single player experience is better to convey the atmosphere, only games that change this rule is Left for Dead and MMO's.
Single player because the majority of gamers online are obscenely rude and/or there are a lot of cheaters. But the concept of multiplayer gaming itself is great and I like that a lot if the two aforementioned problems are minimal.
That depends on what game it is games like crysis, I play only multiplayer and not single. and mmo are multiplayers but games like dmc and darksiders could be fun as multi, but still great games af single
I agree with Mr.Anderson about co-op campaign. It is a great experience that is much better than playing alone. It serves as a great family bonding activity. As opposed to the typical multiplayer mode where everyone just runs around killing each other, co-op campaigns give you a better sense of purpose when playing a game. It is so unfortunate that most developers are refusing to include co-op campaigns in their games. Funny how some say co-op would ruin the experience or a certain title was meant for single player. I would buy more games if they had this (not to confuse this with "co-op modes" or "zombie modes" like those in the recent COD titles). COD's World At War provided the best experience for me with its four player campaign. I was able to enjoy a whole weekend with 3 of my buddies (one was my wife) trying to push through enemy lines while learning some real history from the storyline. I have not been able to find the same experience since. I believe those stated that single player is better have never played a co-op campaign or just don't have enough friends to enjoy the experience with. Other co-op campaigns that I enjoyed: Gears of War, Ghost Recon 2, Rainbow 6, Borderlands.