Goodyear Eagle F1 AS5 or Continental CSC7?

I'm looking for tyres in 265/35 R20 size

Camskill currently have both of these for around the same price. £208 for Contis, and £211 for the Goodyear.

Which would be a better choice? I'm a bit worried about a high wear rate on the Contis. They're going on an Audi A7, so quite a heavy car.