Moroccan people were comparatively friendly to their former leaders, while Algeria still has strict Anti-French laws in place. Why were the French so hated in Algeria? Were Europeans or Petit-noirs more despised? Did the Algerian people differentiate between those two groups?
The Algerian experience with France was entirely different to that of Morocco or Tunisia and unique in French imperial history. For 90 years the three départements of Algeria were part of France : theoretically no different than Normandy or Limousin, but factually defined by legally-sanctioned discrimination and oppression which continue to have far-reaching implications in both France and Algeria today.
Since independence, Algeria-France relations have been complicated to say the least. A lot of anti-French sentiment is tied to the reaction against French-speaking Algerian elites (speaking French still confers massive socio-economic advantage) which started intensifying as Algeria began Arabising in the 1970s. Algerian nationalism became pan-Islamic nationalism after about 1965 and it has long since become traditional for Algeria's FLN leadership to mobilise anti-French sentiment when they require a distraction.
As for the pieds-noirs, that's a postcolonial term interchangeable with colons - they both indicate the Algerian settler population of European origin or descent. If you're asking about French military (1830-1870) vs colon civil (1870-1962) administration, the colons were much, much worse.