I assume we're talking about:
1. Henri D'Orleans, Count of Paris (descended from King Louis Phillipe, King of the French), the House of Orleans are descendants of Louis XIII, I suppose the Count of Paris is regarded by most French as the rightful Pretender to the non-existent throne.
2. Luis Alfonso de Borbon (or in France Louis Alphonse), Duke of Anjou, descended from Louis XIV (through his grandson Phillip V of Spain), cousin of King Juan Carlos of Spain, the grandson of Don Jamie, the son of King Alfonso of Spain, who was a deaf-mute and abdicated his rights in favor of his brother Don Juan (father of Juan Carlos). Luis Alfonso is also the grandson of General Franco and he just recently got married.
Since Don Jamie and his descendants were no longer elgible for the Spanish throne and because Luis Alfonso is the senior male-line descendant of Hugh Capet, Legitimists view him as the Pretender rather than the desendants of the regicide Phillip Egalite d'Orleans (who voted for the execution of his cousin, Louis XIV)
3. Prince Napoleon, descendant of one of the brothers of Napoleon I, I don't know if there is any serious Bonapartists these days though.