The unfortunate truth is that there is no single, perfect track system for 3 rail.
The two primary types of train running are:
temporary floor layouts
or
permanently built layouts.
For floor running, Fastrack is hard to argue with. Great connections, requires very few drops and the switches are super smooth. If using the TMCC version of the switches, no additional wiring is needed. The downside is the cost and limited flexibility.
Permanent layout situations don't have a clear cut winner:
Ross/Gargraves is a solid performing combination but the larger ties and tinplate rail aren't up to current expectations of scale appearance.
Atlas has a solid library of track but availability has been a recent issue and the reliability of their switches has been a well-known problem.
The rails are far too heavy as well to be considered passable for a true scale offering.
MTH's scaletrax has a much smaller rail but the tie spacing is far too wide for standard mainline and it's not carried by many dealers.
Traditional tubular O gauge is an option for those looking for nostalgia.
It probably requires more frequent power drops and doesn't stay connected in floor running situations very well without using track clips.
The modern 022 switches seem to get some bad marks while most feel that those produced in the postwar years are still very reliable and easily repaired.
Fastrack is stil an option for permanent builds. The sound produced by the hollow roadbed and hollow rails can be a concern. The switch offerings don't yet include curved switches or yard ladders, etc. nor are there unballasted sections for elevated track on bridges, etc.
Weathered examples of Fastrack on permanent layouts have looked pretty impressive.
