I shoot Ektar 100 in both 120 roll film and 4x5 sheets. Easy to develop at home with the c-41 press kit, easy to scan. I use a spot meter when doing LF, and sunny 16 when using my Yashica D. Very rarely, do I get a poor exposure using 100 iso.
Here are some Ektar 100 examples taken with my Yashica D
http://www.flickr.com/photos/8387014...7630831836096/