TomatoUSB

I'd like to get better (longer distance) signal strength than my 54G provides. I've seen recommendations for both the Asus RT-N16 and the Linksys e4200.
The posts are from several years ago and I don't know if the routers have changed for better or worse although someone posted that the radio in the newer version of the Asus model wasn't as good as earlier versions.

So does anyone have experience with later models or know of any downsides to present versions of either router.
Or maybe there's a better choice today?

Thanks