Lol this is fun. Anything before Dreamcast is very much before my time.
S: Xbox 360, PS2
A: Xbox, PS1, Gamecube, Dreamcast, Wii
B: Switch, PS4,
C: Xbox One S/X
D: PS3, Xbox One fat
F:
Xbox 360 in my view had the best library of all time. PS2 also god tier and a close second.
Nothing in the F tier but Xbox One fat and PS3 come close.