The neon colors with backlights are nice and all....if you were into playing "lite brite" as a kid..

Based on the comparison page, the neon lenses aren't very good in anything but low light. The light blue appears to be the best. Then again, that's how it looks in the pics.

Which one has the best visibility in a high ambient light environment?

That is what I want - to be able to see the freaking screen in the day time. Frankly, that is the most disappointing aspect of the empeg, and I am a little surprised the VFD screen was used. At least in my situation, the display is inadequate quite often during the daytime. Yes, the dimmer is all the way up.

Is the controller for the VFD compatible with any other display types? I would be happier with an LCD with a backlight even if it was in just 2 color mode...

Otherwise, the empeg is a great unit for me, but I rarely look at the display during a sunny day because it is just not usable. I guess I have a bright interior..

Oh, I refuse to put any sort of visor around my empeg..

-John M