Lighting in
GT looks gamey? You can't be serious. I'd like to know why white colors look so blurry in Forza. Doesn't make sense.
It's pretty obvious that Forza has more going on like pointed out by
Turk1993
in the other thread. All cars headlights casts shadows at night for example, more reflection on rainy weather and so on. Also RT in game. After all the game did get made by the ground up for this gen.
So Forza is the more advanced graphics here.
On the other hand, I still do think GT7 looks better most of the time. Lighting is unmatched and car models still look clearly better, specially because the materials look less plasticky and the way light affects the materials is more realistic. I think it all comes down to PD's artistry than anything else.