I like this guy's reviews.
YouTube
YouTube
P.S. If you watch the entire videos, you'll find he likes the AT2020 better (IMO), but not necessarily for gaming, if that's your purpose. Around here, USB mics are not usually most folks' first choice because it ultimately becomes obsolete if you want to get a different mic, while a mic + interface gives you the option of switch mics, or even using a couple mics if you get an interface with a couple (or more) mic pres. A little more money, at least until you go buy another USB mic and have one sitting doing nothing...