I just ordered a new camera for personal use. It’ll be my first SLR. Most cameras I’ve held, either in the office or at home, I have pointed to this chart to test the camera:

You can get the original from Stephen Westin in pdf here. Simply printing it on any decent laser printer does a pretty good job. If you have an A3 printer, even better. It’s interesting to see that most of today’s camera phones don’t even do a low-pass filter before subsampling on the viewfinder, causing bad aliasing. There’s still lots of room for improvement!