i don't use svelte/kit for technical reasons, but there is no doubt they have the best developer experience of all the js frameworks, it's well-considered and coherent. they have the most aura for sure.
i do think react (without a framework) is the beat option though.
You can fire up a solid project and get close to react's speed and quality even with earlier preview versions. Comparison aside, the reliability and speed of svelte tooling has felt extremely lacking on larger projects to the point i resent working on my 3 year old sveltekit codebase.