Valver without a doubt. Anyway, the people have spoken. Look back through the thread, count the votes for the old school, and theres a huge majority there in favour of the valver/Willys wide arches and bonnet vent. If 172/182 owners all felt so strongly that theirs was the meaner looking car, theyd all be on here voting wouldnt they, theres enough of them in Cliosport! The fact is that the new Clios DO all look very similar, which is a shame. IMHO Renault made a big mistake by not differentiating the 172 more than they did from the rest of the range or offering a few bright colours that were not available to the rest of the range, like Audi do with their S and RS cars.
And btw, I think the mk1 172 looks a lot meaner than the mk2 which looks like a ladys shopping car. When the 172 came out I could tell them apart from the rest of the new Clios because 1. they were all silver 2. they had decent rims 3. they looked slightly different. The mk2s with the triangle headlights just look bland to me (sorry mk2 owners!) and similar to all the other sporty looking Clios.
To this day, if you see a valver or a Willy on your travels, it looks mean. Check out the rear view and it looks much wider than any RT and definitely lowered. A 172/182 just looks like a 1.2 with a Renault Sport badge.