Running Linux? Avoid any ASUS routers unless you're flashing a new firmware. Awful experience. My last one was the N15. It wouldn't even give out a DHCP lease to two different computers and four different NICs. And, as for: "Ever sat in an internet shop, a hotel room or lobby, a local hotspot, and wondered why you can't access your email? Unknown to you, the guy in the next room or at the next table is hogging the in…
Also, check out the reviews on smallnetbuilder etc, they have excellent ratings for these two routers, with the most high recommendations for both.
There's no need to rubbish the whole range of ASUS routers :)