Are all base plates the same? Your preference and why.

You'd think someone would post a pic. Click on the image for a larger photo. I have the Roadmaster Falcon 2 tow bar with Roadmaster's EZ2 Twistlock series brackets. There are optional black plastic covers (not shown) that can make the bracket mounts almost invisible. If you're a James Bond fan then leaving them uncovered might remind you of something else. :W