one question though: you surely mean mclaren when you say mercedes dont you? "save fuel jenson". heard more than once
but definately, with mclaren its not too bad,especially when compared to ferrari.
can't recall something like that with mercedes gp , but to be perfectly honest here they were never in the position to pull something like that off.
i'll always be schumachers greatest fan but i can't say that he was treated badly when compared to rosberg (who i only started to like since he cut his hair and isn't as arrogant as he used to be in the williams days)
concerning schumacher and early alonso ca. 2003-2006 : that wasn't too bad (if we don't care too much about the unnecessary spielberg/indy incidents in 2002) , the important factor here was that those two had the cars designed around their driving style (loose back end vs. endless traction and a front that "bites" towards the apex). but perfectly understandable, when you have once in a lifetime talents racing for your team you focus on their unique strenghts in order to exploit them, not on barrichello or fisichella/trulli, even though those are very good drivers but will never be legends.
different game since alonso moved to mclaren/renault.
i like a sort of ruthless ,dedicated driver that is driven to win,otherwise i should hate senna,schumacher and all the other greats i hero worship.
but alonso and ferrari are quite a good step beyond that since 2010,match made in heaven those two
edit: concerning hamilton : don't know whether he wanted to be the undisputed number 1, but i'm sure even though mclaren are saints compared to ferrari they would give him all the support he needs once he beat button constantly over say first half of the season so thats not really why i think he left.
could have more to do with the mclaren drivers not getting any trophies they've won, which i find more than odd and maybe personal sponsorship/reduced pr obligations for the team?
also since no sane driver should consider joining ferrari before 2017 , mercedes is the only really prestigious car out there (sry, but i don't rate red bull/mclaren/williams to have the same fascination from a drivers point of view as a silver arrow,let alone winning in a ferrari).
i'm quite sure guys like vettel/hamilton will want to end up racing a ferrari at some point of their career or at least the next best thing