Asus RT-AC68U - been using it for a few years now and its rock solid, no complaints and wifi range and speed is excellent. Have recently overclocked it and running Merlin custom firmware on it as well for extra features and monitoring.
Netgear R7000 Nighthawk is also a good contender.
Sky Fibre Max 80/20 - sync 72200/19999 around 450m (G.INP enabled 17/06/17)
ISP Hx: Freeserve 48k > Wanadoo 56k > Tiscali 8mbps > TalkTalk 40/10 > Plusnet 80/20 > VM 200/20 > Plusnet 80/20 > Sky 80/20