Consider gEDA PCB as well. Personally I can't stand the visual clutter of KiCAD (and most PCB software out there). There is no easy way to quickly view only the top layer (with silk, pads, traces and everything) and quickly switch to viewing any other layer. You have to disable and enable 6 different layers, and things like borders around components can't even be disabled. How do you even get work done when your overview of the board looks like this (not even a complex board):
https://kicad-pcb.org/img/screenshots/pcbnew.pngFor comparison this is what a board looks like in gEDA with the top layer visible:
Notice how the bottom side components are still faintly visible (can be disabled as well), which can help you align things but does not litter your screen and make it impossible to see the big picture (like in KiCAD).
This is with top layer overlaid on in1, for example to see at a glance what traces are going over a solid ground plane:
Pressing tab quickly switches to bottom view of the board:
When designing RF boards it's much easier to visualize the 3d structure with gEDA. In KiCAD there is a 3d view, but it's a separate view and you can't see it in realtime as you lay down traces.