AC dont have better physics than LFS , i talk about oficial content,without any external apps i mean. Real life drifters (professional and beginners) still using LFS because still more close to the real life,can feel grip level when drift(something i dont feel so much in AC) , learn new technics, etc..etc...
i know most of you guys are a racers and your opinion is about it, but in the end drifters(like me) use all potencial of the steering wheel, when you go straight, we go in side ways ,we feel every detail on diferent rotation of steering wheel and when it fail ( AC fail more).btw with some setups you can feel it really bad on LFS or AC,this come from drivers, virtual "mechanics"...
Actually AC are over LFS because have more content and physics are really close, nothing more.