There is no comparison. Team EOS' JB nightlies are faster and more stable than stock Jelly Bean. I don't know what Moto did with the code, but something in their framework slows down their build considerably. Before they started posting nightlies, Team EOS posted a pure AOSP preview build here as soon as JB code dropped. The build didn't include any of their tweaks or mods and it flew compared to Moto's OTA. It is disappointing because Moto left ICS alone for the most part and it was very comparable to AOSP as far as snappiness. This is the major difference between "Google experience device" and "Nexus device." OEMs provide a vanilla experience, but still manipulate the code, usually with poor results. Take it from someone that had two vanilla devices, the HTC G2 and LG G2x - it's never a good thing when the manufacturer starts tweaking the code.
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