I dunno the IQ of these lenses (and almost nothing can be told from the scaled images shown here) but just based on picture angle and aperture I'd go for the Zuiko 12-60mm f2.8!
That's 24-120mm and gets us nice and wide (24mm is a very fun AOV - better than 28mm), covers normal (45mm ~ 55mm), and covers the portraiture angles (65mm ~ 90mm), and it will get us a little long when we need it (120mm is great for tame park birds, dogs & cats, etc.). It's not so long that we need to worry excessively about camera-shake and etc. And lastly at f/2.8 it's reasonably fast for a zoom. Sounds like a nice design! Now if it's without CA, and manages distortion and field curvature on the wide end, and is nice and sharp...

Oh, and if it's not all plasticky with terrible manual focusing facilities... Well, then, that would almost be the perfect lens!