The Stellar does well on the gutter mounts, but I recently began using
the Vista GR-2207 with a frosted lens. Nice muted light source, mr-11 gives it a nice punch and the frosted lens evens it out. I usually get it in a color that matches the roofing material. It blends in better.
As for the bronze vs. aluminum......live and live. I have used it all for many years. My aluminum fixtures are still working (even at the beach!!!).
The brass and bronze fixtures may last longer on the outside, but check out the internals......socket wire jackets flaking off, sockets turning to dust, and I must say....mr-16 mirror coatings do not last as long in those brass and bronze "hot house tanks". They hold too much heat.
Am I the only one that has seen this?? Let me know.......