I have Aristo stainless on my layout and the club uses only LGB brass so I have experience with both. My observations on each -
Aristo stainless -
Pros - very little cleaning required. After very little running for 3 months over the winter, I ran my aristo track cleaning car with a battery loco for 10 mins and I was good to go. Its also very strong and has less expansion and contraction than other metals used in rail.
Cons - those frackin' little rail joiner screws and the color. Both fixable with split jaw connectors and a bit of spray paint. Another con to some may be it only comes in the USA style standard guage tie spacing and not the Euro type.
LGB brass -
Pros - the rail joiners fit nice and tight and it ages to a nice dark brown color
Cons - limited selection of diameter available - 4', 5', 8', 13' (compared to 4', 5', 6.5', 8', 9', 10, 11.5', etc for Aristo track). Its also only comes in the Euro tie profile. Track cleaning/sanding!
Some folks swear by LGB switches. Both brands have their problems in my experience.
-Brian
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