As far as Wired Router.
The main difference between the Entry level Cable/DSL Routers is the Firewall "Filtering" system, and number, range etc. of ports that can be opened through the Hardware Firewall.
If you are a gamer, and or use applications that need ports opening, it is an issue you have to look at.
If you need special ports opening for Server, VPN, etc. You have each targeted Router to make sure that it can keep these ports Open.
Link to:
Cable/DSL Routers - NAT & Ports.
If you want a more elaborate Router with better VPN, and SPI capacities you have to look at the Top Models of SMC, Linksys, and Netgear. Each Brand has a higher level hardware for about $100.
Otherwise I would go with the lowest price, and the decor:
If you need
Cobalt Blue, get Linksys.
Dark Blue get, Netgear.
Nice
Gray Silver, get D-Link.
Futuristic look, get Belkin.
Stylish, get Microsoft.
Battleship Gray, get SMC.
Humble look, get Siemens SpeedStream, or Hawking.
In other words there are no real differences between the above.
:sun: