Hmmm, I think we need pics here?, we’re all putting what we like, but if you’re not familiar with European, US or UK lanterns it’s confusing!
Mine was GECs  Z9517 pictured here, (picture thanks to Simon Cornwell @ Street lighting | UK), these were installed in mass over our town in the 70s/80s running linear sodium lamps, and given sodium lanterns at that time were big bulky things, the Z9517 was one of the best smart and sleek designs I remember as a kid!

 Sorry , I forget that not everyone reading this knows what I/we are talking about! 

 Cast housing Westinghouse OV-20 w/flat bottom refractor : https://www.lighting-gallery.net/gallery/displayimage.php?album=5198&pos=80&pid=170800

 4th gen. OV-15  : https://www.lighting-gallery.net/gallery/displayimage.php?album=search&cat=0&pos=56&pid=156378
 4th gen. OV-25  : https://www.lighting-gallery.net/gallery/displayimage.php?album=search&cat=0&pos=252&pid=30321

Very difficult question but I'd have to say the Westinghouse OV-50.
But the OV-25 ranks right up there.

Old fluorescent street lights are my favorites like the ones here:

Our one has to be the Thorn Beta 5 that we have converted into a table lamp.   
And 'Super Scurry' likes it as well 

Mine one is the good ol' GE M250A2, both in MV and HPS.