My personal picks are the Jerusalem level in PT and T'bilisi in SC 1. Upon seeing the Jerusalem vista
for the first time it felt like the best virtual tourism ever. The blue lighting at the church is
breathtaking as well.
SC SAR has so many great levels. T'bilisi is still a fav ; CT even references it in the Penthouse levels
with similar lights & colours.
However, I have always found CT's specular lighting to make everything a bit too plastic looking.
Love the mission requisite as No kills.