I'll admit I've been somewhat let down by the stats on the Galaxy Nexus (which should have been the Nexus Prime... marketing family be damned, it's a far catchier name). That said, this phone is still, in my opinion, the best phone on the market right now. We'll see how the Rezound stacks up, but I rather doubt it's going to be universally as good or better in all respects. There's always tradeoffs, and I'd say this phone makes relatively few of them.
Processor: The biggest thing that lets this phone down is its GPU. It's not "from 2007" as a misinformed previous link suggested. It wasn't available until early this year, and wasn't put in a device until this summer, also it's clocked higher in the Galaxy Nexus than in previous phones (384mhz on the OMAP 4460 as opposed to 304mhz on the 4430). Yes, the A5 chip is faster, but only when it comes to graphics processing, as the 4460 is a 1.5ghz chip, underclocked to 1.2ghz and has two slower cores on chip to handle more minor tasks to take some of the load off the main cores. So the iPhone 4S will probably outproform the Galaxy S2 in games. I don't know about you, but I don't play games on my phone, so this matters little to me unless it causes lag with video playback or browsing, which I don't think it will. Yes, things could be better in the processor department, but they're still pretty good.
Screen: The screen on the Galaxy Nexus *may* prove to be inferior to the screen on the Rezound, but that is yet to be seen. At the moment I think it's hard to deny that it is the greatest screen available on any smartphone in the world. Yes, the Retina display may have slightly better color reproduction, but it's tiny and the Galaxy Nexus' screen is also brighter. Yes, the Galaxy Nexus' screen is a form of the dreaded Pentile matrix, but given the phenomenal pixel density it boasts I highly doubt it will be noticeable. In the end it's the largest, brightest, highest resolution screen that will be available on a phone as of its release (as far as we know right now).
Camera: There's a lot of brew-ha-ha over the fact that the Galaxy Nexus only has a 5MP camera. I think that's utterly silly. My HD video camera only has a 3.3 MP sensor, and it takes absolutely gorgeous video and more than passable stills. As has been previously mentioned you can do a lot with 5MP and the quality of the camera matters far more than the pixel count. From what we've seen of its capabilities, which is admittedly not much, it does extremely well for a phone's camera, and the only way we'll know if it's as good as or better than the iPhone 4S's camera is to see some full resolution photos and video. The reason it's only 5MP is obviously so that they could offer the zero shutter lag they've been promoting so hard with this camera, which is something I don't think any previous phone's camera could do.
Connectivity: 4G LTE... what more needs to be said? Even if I loved apple I could not buy an iPhone 4S when it doesn't offer this technology.
Materials & Durability: This is an area where I think personal preference plays a large part. I feel that Samsung has proven that a phone doesn't need to be made from metal in order to be durable and a quality piece of engineering, but others disagree. No one can deny however that the Galaxy S II is a more durable phone than the iPhone 4/4S. The Razr may prove to be a better engineered phone from the standpoint of build quality, but I think it's hard to argue its superiority to the Galaxy Nexus in any other department.
Other features: The Galaxy Nexus is jammed with interesting & not so interesting extras (who cares about a barometer?). NFC may be useful or it may be a gimmick, it kind of depends on adoption. The lack of a built in HDMI port is disappointing but I very much doubt that this phone completely lacks HDMI out capabilities, and probably does so through the USB port as previously mentioned by other posters. The bluetooth 3.0 vs bluetooth 4.0 issue is mostly one of compatibility and convenience when it comes to devices like heart rate monitors and other jogging accessories like those special Nike sneakers. Basically as long as this phone has some method for HDMI output I think it's hard to fault it on extra features.