I'd go for the 182, but have to agree with mr tommo, spend £5500 max on one. Should get you an 05 182, with both cup packs (Make sure this is the one you go for) and a decent mileage. People are complaining about the interior (I don't think it's that bad), but it's the performance you get from the car. Not about straight line speed, but in the corners it's one of the best handling hot hatches. The 182 and ST are like night and day, the fez is a really nice car, but can't be compared to the clio, unless of course it's modified. The fiesta will be the more comfortable car, but not as quick, so depends really what you want. Just don't spend 7k on one. For that budget look at the CTR.
Also, if you do go for a 182, make sure it's had the cambelt changed. This is a costly service, around the £500 mark and needs to be done every 5 years/70,000 miles.