Fate series: best servant master relationship

[Star_Of_Hope]

Most of those servants are treated as mere servants.

Even in the first season, Saber got treated as a mere servant after the summoning. So what do you guys think?

 

[Demon_skeith]

I'd say Rider and his partner in Fate/Zero, they were the best of buddies at the end.

 

[Blackangel]

i can't think of anything
all of them got their own flaws and i can't pick one.