The 150mm has been practically living on my camera the last 3 days. I also really like how it renders a scene through the viewfinder (of course, will have to see how they turn out on print) I almost prefer how it makes a landscape look over the 80mm, but I could just be seeing through rose coloured glasses (or a red25). I think I've found my new favourite way of shooting scenery
I shoot mostly landscapes with my Hasselblad system which consists of all CF lenses.
I think the 180mm is *perfect*, not very expensive at $600-4800 used and works fantastic as a 250mm 5.6 with the 1.4XE converter.