We thought it would be interesting to compare the TJ, TJ Unlimited, JK and JK Unlimited dimensions, angles, and turning circles. We also thought we'd toss in the Commander for the sake of comparing the JK Unlimited to it.
All information is from Jeep press kits and Rubicon models are used in most cases (despite the JK Unlimited photo being an X). Note that turning circles for TJ are quoted with 30" tires and that some information was not specified per which model exactly (Sport, Rubicon, etc.). The information should be close enough for a proper comparo, though.
If your screen is big enough, you can click on each photo to open in its own window.