Here's an article that compares the 45-200, 14-140 and 100-300 at 100mm and 200mm.
Probably old news for most, but the difference is so profound that i had to post the link anyway

http://m43photo.blogspot.com/2011/10/sharpness-comparisons-100mm-and-200mm.html

@Cotillion:

Thanks for sharing.

@voyager:
 
Yes, Oly M.Zuiko 40-150mm would have shined in the test.

To get an idea of its excellent sharpness compare them here:

Olympus 40-150mm f/4-5.6 ED M.Zuiko Digital:

http://www.slrgear.com/reviews/showproduct.php/product/1374/cat/15


Panasonic 45-200mm f/4-5.6 MEGA OIS LUMIX G VARIO:

http://www.slrgear.com/reviews/showproduct.php/product/1226/cat/69


Panasonic 14-140mm f/4-5.8 ASPH MEGA OIS LUMIX G VARIO HD:

http://www.slrgear.com/reviews/showproduct.php/product/1251/cat/69