Since i've presented the main socialist candidates, i thought i would present the main conservative candidate
Nicolas Sarkozy.
Nicolas Sarkozy is hardly a "conservative" though since he proposes major changes for French society. Nicolas Sarkozy is a radical liberal, he has a very hard line on crime and immigration (his ideas are similar to Ségolène Royal's in that respect even though they are political opponents), he's rather pro-American and supports economic reforms based on the American model.
On a side note, Nicolas Sarkozy (full name Nicolas Paul Stéphane Sarközy de Nagy-Bocsa) is the son of a Hungarian aristocrat who fled Hungary in 1944 when the Russian army invaded the country and installed a communist regime. So Nicolas Sarkozy doesn't really like communists and soviets.