FMCG
I agree with you. The more information a chart contains without adding to the clutter the safer the operation will be.
There was a time that JEPP did some beta testing with color and more detailed contour lines on their charts. The area charts and approach charts were easier to understand even in a dimly lit cockpit during evening operations. This is going back more than 10 years ago. I think Denver was one of the beta test areas they did this on. And as quickly as they appeared with great reception, they disappeared.
Other than NOS and JEPP (both US charts) and the charts from the LH captain, I have never seen any other format. Do most of the airlines (not the pilots) in Europe prefer other charts to JEPP? Are the other charts more expensive than the JEPPS?
There was one other formatted chart I saw many years back has well laid out. It had ATC frequencies for locations based on flight levels too.