"And I've played with gs2's that were choppy as hell in browser and maps", clearly you haven't even touched a Galaxy S2 in person and made bull**** up to back up AOSP which is why Android is still rather unoptimised.
We need people to be honest and google to fix lag issues for future builds.
---------- Post added at 01:26 AM ---------- Previous post was at 01:20 AM ----------
Its not with the GPU, SGS also has the same GPU as the Galaxy Nexus but at a lower clock speed. The once in a while lag is very annoying and what many of us hate is how android zooms in "level by level"
Here is what I mean by "micro lag", when flickering down a page on Galaxy Nexus there is visible "jitterlyness" and google needs to fix this.
http://www.youtube.com/watch?v=TVn-u7MbB3E