I myself am leaning towards Scaletrax. It's a little cheaper per switch than Ross, takes up somewhat less room than realtrax and provides a closer gap between the center rails near the frog to enable... a track mobile or something to creep across.
I am attracted by the way they beveled and shaved the frogs in their switches...
I don't know yet which way I am going. However to me that center rail seems awful thin. Wonder if it will damage the rollers or spark a lot on the power.
They seem to be a little limited on supply at the moment; but are out there. It would be nice to see a curved switch going from 072 to 080 for example.
The other thought I have is I may be using Atlas 3 rail signals and think that scale trax might provide more places to locate these things.
My two cents.