YANKSALI, I used Atlas track and turnouts, but I would recommend Gar Graves (or Ross) track with Ross switches.
Atlas track is super realistic, but the switches do not always like every locomotive, depending on the placement, type, and number of pickup rollers. I wanted the very realistic look of Atlas, and am willing to work around the issues with the switches. Not everyone is that willing.
But Gar Graves and Ross look very realistic too. The ties under the Gar Graves and Ross track are oversized. However if you paint the rail and use good ballast, everything will look just fine. You'll never notice the difference. And Ross Switches work flawlessly. Ross switches are usually in stock somewhere, and that is also a factor. You may have to wait for production on other brands.
If you are planning to lay track on green carpet, you don't need to paint it, and Gar Graves and Ross will look great, as will Atlas if you so choose. But, if you are going to ballast it, I do not recommend using rusty orange colored paint for your rails. A grey or grey-green color looks more realistic to me. I used Rust Oleum Camo Green for my main line track and Rust Oleum Camo Brown for yard tracks and spurs. I did also use different ballast for the yard and spurs. The track, including all three rails and ties, was painted. Then, the top of each rail was immediately wiped as clean as possible. Finally, after the paint dried, the top of each rail was wiped carefully, with a rag dampened with acetone.
Here's the freight house spur, Camo Brown painted rail on a mixture of Brennan's rock and Woodland Scenics fine black cinder ballast:
I
Here's the main track, painted with Camo Green on Brennan's Better Ballast rock ballast.
A bit off-topic, but still related: No matter what brand of track you decide to use, it will serve you better if you clean it frequently. Weekly is not too often, and, if you use smoking engines, clean it after you get ready to shut down the layout after an operating session. No brand of dirty track will give good service and it will transfer crud onto your wheels too.