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.
If you want in general 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 $120
Otherwise I would go with the lowest price, and the decor
And hereeeeeeeee is the best Router.
The Best Routers.