[calvados]

I believe that the advantage of DSLR is just lens and wide possibility of photography.
DSLR and M8 has big difference, it is not parallel.

I agree with you about Zuiko Digital Lens quality.
Specially, 14-35 F2.0 is super; currently I always chose this lens at bright place or dark place with manual focus exlude very dark place.
When you will use 4/3 body with LEICA or other lens, you will use very good performance area, because 4/3 system working in half size of image circle, therefore we can use very hi quality area.

I believe disadvantage of 4/3 are we need new lens, especially wide area.

Almost people say that disadvantage of 4/3 are small sensor than APS size sensor, therefore 4/3s noise.... It is not thru, because the noise of OLYMPUS / Panasonic / LEICA are caused by noise reduction technology, not sensor. The real noise is same level 4/3nser and other sensors, because photo diode size is nearly equal, CMOS can't make big photo diode. Why Canon is low noise, it is simple, Canon sensor include noise reduction system on cell level. This 4/3 noise is caused by this difference, not cell size.
Currently, OLYMPUS shipped 2 type of noise reduction, first is same as M8, second is Noise Filter. This result, ISO400-800 has same level more low ISO and very few deciles quality. But Nikon and Canon has more high level noise reduction technology, therefore they can make higher ISO. If you need very high ISO, Nikon or Canon is best choice.

Other view point, 4/3 has twice of DOF, and High speed lens.
I like this point, because photograph is more easy than 35mm format.

If you have Nikon or Canon SLR lens, and it is good quality, the best choice is full size sensor DSLR of same maker. Or you need very high ISO, your best choice is Nikon D3 or Canon.
But all of other case, 4/3 is one of best choice, because you can access new dimension of digital advantage by format. You will use almost lens exclude Canon, and you can use Zuiko Digital and Panasonic/Leica D lens.

The following is sample of E-3 + 14-35 F2.0.