Originally Posted by
Ecrevisse
My favorite is the Nitto R Cage.

I love that Nitto cage, too. Never owned one though, since the price has always been prohibitive for me. Maybe one day I'll find a deal on a used one.
I'm partial to TA cages. They're light, and the have a classic look to them. I own several versions. Here below on my Look, if you look closely you will notice the one on the down tube has weld marks where the side rails join to the mounting plate, whereas the one on the seat tube has a rounded overlap. Both are aluminum. The one on the down tube came with a grey anodizing that I removed and then polished the cage. That was a pain and I never could polish all the nooks and crannies. From a performance standpoint, they are a little flexy but I've never had a bottle fly out of the cage --though I could imagine that happening on some cobbles.
Here again is the TA cage in chrome, which likely predates the alloy version.
Also a fan of the King cages. Very well made (in the USA) and reasonably priced. For a slightly more modern look, I like the King Iris cage. Don't have any great up-close shots of the cage, but here are a couple different angles:
For those with even more discriminating tastes and no budget, the Iribe cage looks really nice, too:
Compass Bicycles: Bottles/Cages