Agree with Will Crockett

I have the 12/2 and the 14/2.5. No contest.

The Olympus 45/1.8 is a great portrait lens, and at less than $400 a great value.

Olympus 60/2.9 macro tested superior to the 45/2.8 macro for 1/2 the price. Just got one

The 75/1.8 is in a class by itself. I'm very tempted.

As for the 75-300, don't knock it until you try it. I had both the 100-300 and the 75-300. I have to say IQ wise they're very similar. Focus wise (on an E-M5), the 75-300 is faster and more surefooted.

And then come all the HG and SHG lenses, which are in among the best. Hoping for a new hybrid model that could take advantage of these lenses.

Don't get me wrong, I may be an Olympus fanboy, but unlike you I also own Panasonic gear. 2 bodies and 4 lenses. The FZ200 may be my next toy.

And the killer, is my µ4/3 pocket cam. The GF3 with the 15/8 bodycap lens.

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My nickel, since the penny is being discontinued...
Jeff.