I lied ;) It is not actually a real "V" confrontation because the NEW Olympus M.ZUIKO DIGITAL ED 75mm F1.8 lens is not even in the shops yet! But what I have are high resolution samples taken by this big deal telephoto lens from Olympus themselves, that to me are good indication of it's quality!
What I do have is Olympus's competitor, my LEICA SUMMICRON-M 90mm f2 short telephoto.
From 1980, for 18 years; this chunky, weighty glass was Leica's most expensive 90mm lens! In 1998 Leica replaced it with the even more expensive but even more spectacular LEICA APO-SUMMICRON-M 90mm f/2 ASPH !!