If it was really about the songs (from a composition perspective) neither Finland nor Sweden should have won tbh.
Your own personal preferences are not a proof of song's quality.
As for Sweden we all knew it was outdated.
But Finnish and Israeli song were both original, they added new ideas into composing techniques, they were both insanely good produced.
One was loved by the juries because in all of the above it didn't succeed finding a catchy tune for lay audience so it added a pretty good vocalist as a performer, and the other one succeeded in doing the opposite by contrasting industrial metal parts with catchy dance ABBA alike tune.
But that doesn't make either of those 2 worse or better in respect of song's quality, it's just that Finnish production was "smarter" in calculating and
engineering the sound to make it more accessible to an average consumer.
Sweden was objectively worse than both in terms of quality - chorusless, outdated, repetitive