Phil Nickinson from Android Central has put the iPhone 4S vs. Galaxy Nexus head-to-head in an epic comparison, complete with videos, pictures, uncanny insight, and everything else you'd expect from a Mobile Nations showdown.
The bottom line seems to be, if you want a bigger screen (4.65 inches), a removable battery, NFC, an LTE option (if Verizon actually releases the darn thing before iPhone 5 get announced next year!), and a more customizable, Google-centric system, go with the Samsung Galaxy Nexus.
If you want a smaller screen (3.5-inches), a better camera (huge 8mp, photon-friendly sensor), the Siri virtual assistant, the still overall better quality App Store apps and more robust iPhone accessory ecosystem, and the more user-friendly, Apple and iTunes-centric system, go with iPhone 4S.
If you're simply stunned and amazed that we have two such incredible devices on the market these days, with more on the way, then join the club. For more:
Source: Android Central