You have to make sure at least some of your devices support dual band wireless to take advantage of it. It's not a standard feature. --- MacBook Pro with Retina Display | 15.4" 2880x1800 | Core i7-3615QM @ 2.3GHz | 8GB DDR3 1600MHz | GT 650M 1GB GDDR5 | 256GB SSD | OSX 10.8.4 | Windows 8 Pro
I've had an ok time with D-Link and Linksys. But, I hate how D-Link with their new routers push their SW to access network drives.
I personally own a Netgear ATM, however I have an AC router. Specifically this one: amzn.com/B00BR3ZYIW
Haven't had issues with it since. But I bought this cause I wanted something that'll last for a couple of years.
Belkin is a buy at your own discretion. I've never owned one, but I've heard some bad stories/reviews. I think that was with their older stuff though, so I don't know about now. --- GT: Fission MaiIed (L is i); PSN: FissionXMailed (L is L); BNet: FissionMailD#1973; Steam ID: gfreak001 No "i" in team, but there is in fail.
Never buy a Belkin. I have the Netgear N600 (WNDR3400) with 10-12 devices connected at any given time and it seems to handle it. The range is also really good. It's upstairs towards the back of the house and still manages to make it downstairs, out the garage, and down the driveway. --- i7 3770k @ 4.5GHz  HIS IceQ X^2 7970 |1200|1600|3GB|  16GB Ripjaws Z 1866  ASRock Z77 Extreme4  250GB Samsung 840  2TB Barracuda  CX 600 PSU  H80i