Fritz!Box Fon vs. Apple Airport Extreme

Hi everybody,

I need to buy a new wireless router with the following characteristics:

- 802.11n compatibility
- Good coverage
- Print sharing / NAS
- Mac Os / Linux support

I narrowed down the candidates to:

- Fritz!Box Fon WLAN 7270
- Apple Airport Extreme or Time Capsule

The Fritz!Box is a bit redundant, as I aready have a DSL modem from my
ISP and I don't know how much I would use the VOIP / DECT features,
but I would go for it if it has equal or better coverage than the Apple
products...
Any hints or suggestions?

Thanks in advance!