Pick your two favorite lenses

the 25 and 75...

Then, I'd sell the 75.

Then, I'd buy the 7.5, 14, and oly45 with the money I made off the 75.

But if logic wasn't an option, I suppose I'd pick the 25 and 45 because my focus is family/friends portraits.  And though the 75 is spectacular, I wouldn't be able to take much more than a head shot with it in my little studio.  Outside of the studio, the 25 covers almost 90% of my needs.