Wireless AC Router - Spec Me!

[TheStarkFactor]

Hey.

I've a budget of £120 for a new AC Wireless Router, talk to me about what's the best in terms of reliability, signal strength, quality and speeds at this price point...

I'd preferably like one with ADSL2+ capability built in (to work with Plusnet) but will consider a standalone router and modem combo if it means I get a better router.

I have looked at a couple, namely...

Linksys EA6900
Asus RT-N66U
TP-LINK Archer D7 AC1750

OcUK spec me!