Its clear that this being in a Live for Speed forum that the argument here is a bit lopsided, I am going to bring up some things that I did not see mentioned. First off, whoever thinks of rFactor as arcade like simply has not given it time, the game like every racing sim has a learning curve, it takes a while before any new sim feels authentic and real to you personally. After having played GTR2, GT Legends and rFactor for a while, I game LFS a try and thought it was terrible. I have come back to it again and again to eventually developed a taste for its physics and style. Lets be honest here, the sound and graphics of Live for Speed lose out to just about every modern racing sim on the market. I dont consider the graphics to be really a negative thing at all due to the smoothness of play that LFS has, but the sound leaves much to be desired. The tracks in LFS are somewhat limited, but all well done. An advantage to ISI's rFactor is that you can download almost any track or vehicle in the world within a few minutes and race it, even small, local tracks have been made. Some of these graphicly surpass LFS, some are terrible graphicly, dont perform well and contain numerous flaws and bugs. But the biggest difference for me is the physics between these two. The fact of the matter is they both have extremely well developed and tweaked physics models. I think LFS has rFactor beat with sports cars as of now, but I will protest against the LFS fanboys and say that none of the single seaters in LFS feel as real to me as they do in rFactor, F1 being the biggest in my mind. With all aids off I can pretty easily navigate an unfamiliar track layout in LFS, in rFactor, it takes a good 15-20 laps before I can consistantly make a full lap with no spins or wrecks. It feels faster, sounds louder, and with headshake at high speeds simply immerses me more into the car. But truthfully, there probably is not a single person in this forum who has driven any modern F1 car, or has any clue as to what it would really be like to drive one, so its simply a matter of personal taste. My decision a long time ago was simply to try them all, if I want good, quick and balanced online racing I choose LFS, if i want to race single seaters, its rFactor, and touring cars there is Race07, GTL and GTR2. They all have there place in my lineup, so why do any of you care what others think is the best? try out some demos and find out for yourself what you enjoy the most.