Thanks, everyone!
Jonesy, I don't know what it is, but is always seems to be a crazy time of year! I guess it's the never ending grant cycle/grad advising/research-teaching-admin balancing act...anyway, I think it's the lack of contrast or color in #5 that is not working for me. I usually pair those pants with a black or ink blue jacket - it's the only way that I can wear them and feel OK in them or they just feel to blah. And if there's not contrast, then there needs to be color.
Rita, thanks again for the tip!
Meredith, lots of folks have commented on lighter shoes - I think they generally work better for me, and I'm still learning how to wear them.