I personally outgrew the look. The current 2wd Burb I have now, the previous owner had it slammed to the ground, everything blacked out, he even took the taillights apart, painted the reflector area all black to give the lens a darker look, still factory, but darker.
Problem was that it wasn't very bright, I don't like that, so I took them back apart, cleaned them up and repainted with some of that chrome paint. It's not really chrome, but more of a really shiny silver. They are REAL bright now.
I see LED lights around a lot, most don't look too great with still using the reflective surface area to project out the light. After being a package delivery dude for awhile, a while back, I ran into some motorcycle shops for deliveries. The dude was cutting out a sheet of tiny LED's for the taillight of a custom bike,, looked really cool. Then I was thinking, why couldn't there be a full sheet of these LED lights, basically secured to the inside of the factory red taillights, right up against the curved area.
It would basically be one full sheet of red light, instead of a reflected light source.
I used to have smoked taillight covers on the back of my Camaro, thay look good, but man do they ever cut down the brightness of the illumination.
I got rear ended in that car from some woman who wasn't paying attention, on her cell phone,,, as we're standing there talking to the cops, one cop mentions about the covers, saying they really aren't that safe, before we really got into the conversation about them, the woman starts blabbing about them being illegal and that's why she hit me, she didn't see my lights... Then the cop stops her, says ma'am, see that light right in the middle of the spoiler, just about the two other lights? As long as that one works, (which it did, and was BRIGHT) that is all that is required in Arizona. (one working taillight)
Shut her up real quick, but she was still fightint it with her insurance company, they even had to come out and take pics of the lights and their brightness.
As far as the chrome, clear lens units with the funky shapes to them, no, not a fan, keep the stockish look, figure out some other form to modify the light.