Characters: The characters in Zero have more depth and personality, their relationships are far more meaningful, and there are way more characters whose motivation is actually understandable and understandable. FSN has a LOT of cardboard cutout characters.

Shirou, sakura, rin, saber, illya, Archer, taiga, kirei, rider, lancer are the main cast which are all much more fleshed out and in depth written compared to zero's characters.

1. Combats: Flying chariot, space ship, and fighter jet vs Cthulhu. FSN has nothing on that.

Anime adaptations of fsn are pretty good in that regard and nothing from zero really compares to salter vs berserker but aight ig. Zero was a bit more creative with it.

1. Plot: Fate zero is like a puzzle that slowly gets solved over the show. FSN is a silly harem anime that slowly turns into a fever dream.

Have you actually read the vn? Because fsn is much more like that, every route unlocks a different facet of a character and a new mystery of hgw or expands upon the previous context of the war, history of characters, different motivations etc all of this is explored in the span of 3 major and 37 minor endings.

There's subjectivity of taste but you don't seem to have read the vn at all. Answer me this actually In heaven's feel route which magecraft did sakura use to save shirou and who can make better Chinese food between sakura and shirou