I would have to disagree with the statement about the Deathadder Chroma that "its notched scroll wheel feels and works great". When brand new, my DA Chroma's scroll wheel made a cheap rattling noise, especially when scrolling up. For this reason, I returned it, and I am still looking for a mouse with the following characteristics:
+ Ergonomic, right-handed, large -- suitable for a palm grip.
+ Simple -- preferably no more than 7 or 8 switches.
+ Solid quiet scroll wheel.
+ Minimal branding; no or minimal lighting.
+ Up to date sensor, preferably optical.
During my search thus far, I have tried the following mice: Corsair M65 (too short and too narrow at the back); Ducky Secret Mouse (too slippery to pick up easily; light stripe with sticky plastic); Mionix Castor (a bit too small); Mionix Naos 7000 (too slippery to pick up easily); Razer DA Chroma (noisy scroll wheel); and Roccat Kone XTD (ostentatious logo and light stripes with sticky plastic).
The Roccat Kone XTD had the best scroll wheel along with excellent ergonomics and an overall feeling of solidity, but the logo and sticky plastic light stripes were deal-breakers.
At the moment, I have settled on a Razer Mamba Tournament Edition. Although I would prefer an optical sensor, the size, shape, weight, surface, appearance, and ergonomics of the Mamba TE are rather good, and the scroll wheel is significantly better than the one on the DA Chroma. I even like the Synapse software, which enables me to tone done the lighting or disable it altogether.