First controller

They're both better at different types of games.

Love the 360 controller, I use two wireless

Depends on the game.Driving is a lot better with controller,shooting a lot worse.

Depends of what game you're playing.

Haven't used an Xbox 360 controller on PC games for a while, it's really good. My wired one died out on me a while ago but I used it a lot for GTA IV and other games on the PC that played better with controllers. Still have a Madcatz wired controller but I only use it when the RT isn't required as it's broken.

Don't use it if it feels wrong, use it if it feels right, except on FPS, never use a controller in FPS you would be gimping yourself.
On the other hand, Platformers and 3D adventure games are way better with a controller.

Racing, hack 'n slash - perfect, TPS - okay (just gotta get used to it), FPS - pretty bad IMO, especially if the game doesn't support aim assist.

Own a X360 controller for over a year now.

3rd person games, platform games, racing games, and sometimes 1st person as well, but only in single player mode. I enjoyed Bioshock 1&2 big time with my 360 controller.

Dark Souls is better with a controller.

For me a controller is awesome for racing games and hack 'n slash but for first person shooters, or 3rd person games that require more precise aiming, personally I have never gotten used to the aiming on a controller.

It usually takes some time to get used to. I found it especially tricky when switching from a game I'm used to play with M+K to a controller. For me, FPS should be played with M+K, third person depends on the control scheme, sometimes a controller might make it easier (if it was made with a controller in mind, this is usually the case). Football or driving games are great with controllers, as are platformers.

The PC game I used a controller with was probably Deathspank.

Why would you want to get used to it? No. Keyboard+Mouse is and will always be best.

Kb/mouse for FPS

Controller for anything but FPS and MMO games imo.

There are very few games I won't play without a gamepad. Not only have I been using them for more than 20 years, but got some problems with the joints in my left hand, and a gamepad means less actions mapped to that hand. About the only real negatives it has in gaming compared to a keyboard and mouse are

• Accuracy with analog stick aiming isn't pixel perfect (though most games I can use it just fine, I can't think of any that really need that level of accuracy even with headshots).
• Less keys to access (which also is rarely a problem, not many games require more than what a decent gamepad can offer).