The three lenses that seem to get by far the most use for me these days is the P12-35/2.8, the Oly 60/2.8 and the Oly 75/1.8. I used to love the P20/1.7, but I rarely take it out of the bag any more. The 12-35 is my workhorse- love it. I've gotten used to the extra size and weight... the convenience and quality is worth it. The 75 is pretty new to me, but I really like it so far. I held off for a long time 'cause I didn't want to spend the money, but I'm glad I finally did. The 60 I use mostly for a little macro work, but portraits as well, when the 75 is too tight. I rarely feel the need to use anything else than these three great lenses these days!