My friend uses a D-Link DIR-665 Xtreme N 450 Gigabit Router Selectable Dual Band 802.11n . I can't speak from personal experience because my WiFi needs don't demand more than a $15 Tenda router, but my friend is very high on his D-Link one. YMMV.
Comcast gave me their (admittedly ******) modem/router combo box, and I hate it. Well I don't hate it, but my technologically impaired parents do. I have no problems with it, because I keep it in my room and use the wired connection for my desktop. They on the other hand are on the opposite side of the house (I live in the attic on the top left of the house, and they live in an addition on top of our garage, which is on the right side of my house), so they don't get good internet. At all. I get upwards of 50 Mbps, they get 1 or less Mbps. So my question is, what router would be the best to reach their side of the house? I believe it's about 50-60 feet away from where the modem/router sits now. I can take a picture of the front of my house if anyone wants to fact check my distance measuring skills because I'm not at all confident in them