The ride quality on my Model 3 Base Performance on 18” is ok. No big difference in ride quality between 38 or 43 lbs. I guess 20” are more sensitive to pressure
LR all the way. AWD gives you the best daily driving experience. Less worries. The grip is so good. Control is sharp (you can also choose the control to less sharp). I have had the model Y LR for 9 months. I don't have any complain.