Three of the four mice here are under 80g and symmetric. The DeathAdder is the opposite: a right-handed ergonomic shape with a proper thumb rest, at 96g, on a cable. The Focus+ optical sensor is accurate and the shape has been refined across many revisions, which makes it the one I pick when a long session matters more than a ranked one. Razer cut the price point by dropping RGB down to single-colour green, and keeping the optical switches.
The wired default for desktop work. It is the mouse I stop noticing, which is the point at which a mouse has done its job.
It is the heaviest and the only strict right-hander of the four, which rules it out for anyone using a left hand. Polling stops at 1000 Hz and there is no wireless. The lift-off distance is roughly 2 mm and cannot be changed in software, which does annoy people who want a very low one. Single-colour lighting is a downgrade if you care about it.