All those mice you said are absolutely amazing.
All has flawless sensor with no prediction, and all of them has good tracking rates.
So I would say that technology used in those mices are pretty same. EC eVo and G400 uses both same ADNS-3090 sensor, and generally DA uses same sensor, only difference is that in DA there is infrared light (which you can't see) instead normal glowing red light what we have in EC eVo and G400.
When you have good technology like all those mice has, you must only figure out that what shape you prefer. G400 has pretty weird shape (I mean the right side) and many don't like it. It's still one of the greatest mouse and if you just get used to shape it will be amazing mouse with amazing-low price. (35€ in Finland)
My personal opinion is that ZOWIE EC1 eVo and DeathAdder wins G400 in terms of shape, since I like IME 3.0 shape. Both of those are very similiar to IME 3.0, but I think ZOWIE EC1 eVo is even little bit more. So if you ask best ergonomic mouse my answer is
ZOWIE EC1 eVo.
Whatever mice you choose from that pool you won't regret.
Post edited 2012-06-16 19:33:322012-06-16 19:31:12