What is better ?

Depends what your willing to believe.

Personally niether

Well I would like to get from them as possible accurate answers . I have a bed experience with tarot and I ching is something new to me .

Maybe it's because I have some ancestors from Eastern Europe, and not China, but I prefer Tarot. But then my closest sole mate prefers I Ching. Study the meaning of the first I Ching hexagram, and compare it to the last Major Arcana card, The World. They're the same! Then study the last hexagram and the first Major Arcana card, The Fool. They're the same! One ends where the other begins, then circles around to begin where the other ends. Each holds a piece of the other in its heart. Hmmm... Isn't there a visual symbol of that somewhere? ;)

The value of any oracle depends on the purity of your motive in consulting it, not on anything inherent to the oracle itself. Unless you bring a sincere intention to make something positive and productive of it, no oracle will have much value for you. If you do, any oracle at all will work.

When I ask something tarot every time a get a different answer so I am confused . I asked about possibility of being revived after cryonic preservation .

When I asked I ching I twice got the same answer . Its good for your family .

What an interesting question to ask.

when i ask something tarot every time a get a different answer so i am confused . i asked about possibility of being revived after cryonic preservation .

when i asked i ching i twice got the same answer . its good for your family .
Oracles quite often speak in riddles and contradictions, especially if the question is idle speculation.