If you want these answers, use the compare function on - http://www.topgear.com/content/buyersguides/ - or this other website - http://www.honestjohn.co.uk/carbycar/index.htm.
From a person who has driven and owned both of those cars, I would say go for the Clio, which is vastly overpriced for what it is. Either go for a VW polo, the new version of the Honda Jazz, or my current car, the only one of its size to get full marks on safety, the Peugeot 207. The fiat I owned I paid £8000 for, and four years later got £1000 for it, even though i'd got it serviced etc, this happened twice actually....so always pay attention to the resale predictions on those sites too...