The Fiesta is a great car
You will have exactly the same HPFP cam follower and carbon fouling maintenance to do as the GTI, though
It's not quite as brawny in the midrange as the GTI, being 400cc smaller, but the car is lighter, so overall not a big difference in point-to-point performance. The suspension is a LOT stiffer than the GTIs, especially at the rear, but it works overall, not excessively crashy or harsh.
What pricing are MK6 Focus STs currently sitting at? I would consider that over the Fiesta if you want something a bit more civilised. It's still sharper than the MK5, but not as aggressive as the Fiesta. The Focus has a very decent Traction control system and can be powered out of corners much quicker than a one tyre fire MK5.
The 2 things fast Fords do really well are seats and brakes. The Recaros being way more comfy/supportive and the brakes a lot sharper and more powerful than VW's efforts.
Peugeots are, well, Peugeots. Quirky French stuff. I'd take the Fords over the 208 any day of the week.