Rubik's 4x4s might have that rail system but they're awful either way. I got one and I didn't even turn it 20 times let along solve it before a center pieces snapped off and went flying. I though that was a fluke so i exchanged for a new one and that broke in just over a week. Besides shoddy craftsmanship on the Rubik's Revenge it's a beast to turn and doesn't cut corners at all. After the second one broke I just got my money back and was so turned off from Rubik's brand products I sent back the 5x5 before I even opened it. I'm currently looking into Marus and Mefferts for a replacement 4x4.
As far as 3x3s go I highly recommend the Hayian Alpha-V. I got it a few weeks ago and recently did the Memory mod and yesterday I lubed it with Lubix and the thing is an animal. It cuts up to 45 degrees and turns very fast. I got the white one and it took some adjusting since I'd been using a black Rubik's storebought but now that I'm used to it I'm only buying white cubes.