If you love super chunky guacamole, try using a knife to "chop" everything together, the way this video from Ina Garten demonstrates. You'll get the texture you're looking for, and it speeds up the process.
As you can see in the video, simply add your avocados, spices, herbs and garlic to a bowl. Next, use a knife to "chop" all the ingredients together instead of using a fork to mash them. This leaves you with well mixed, yet still super chunky guacamole. Of course, if you prefer smoother guac, this won't do at all and you should still get a fork, but if you like big chunks of avocado and other ingredients, it's perfect.
Be warned, you should use a bowl that can stand up to the knife and a knife that won't be ruined with this method (like a butter knife). When I tried this out, I just wanted the avocado so I mashed in with a butter knife while it was still in the skin. This method only really works if your avocados are nice and ripe, so keep that in mind. If you're a fan of chunky guacamole, this method can make mashing your ingredients even easier.
The Contessa's Guacamole [Food Network YouTube]