Theism is a belief in some sort of god, whether it's the current one in fashion or of some other god. Atheism is not believing in any type of god period. As far as to which is better, that is for one to decide personally. Will you feel emotionally comforted in believing in a god or are you strong enough to believe in yourself.
You are asking for a value judgment. That decision must be made by the individual. In matters of belief we should not judge the beliefs of others, the non-belief of others nor do we have the right to impose our personal beliefs on others. That there was a supreme creator of all that we know, who controls human destiny, is a speculation at best. Some choose to believe and some do not. Atheism is better for some people and theism is better for some people. It is a matter of choice.
Theism,atheism,monism,Dualism, agnosticism.
The proper term is Atheism, or Anti-Theism if you are against religion.
It's called Theism. When people don't believe in a god, it is called Atheism.
There is no such word, since there is a perfectly good alternative, atheism, already in wide use. Atheism is the conviction that there are no gods or deities of any kind. The 'a' of a_theism is a prefix of negation.
The category would be called religion or creed.
H. D. Barrows has written: 'Cosmos, or chaos? Theism, or atheism?' -- subject(s): Accessible book
Atheism is the lack of belief in deities and is not connected to ethnic cleansing at all. Ethnic cleansing could be believed to be something a deity calls for so, in that manner, theism (belief in deities) is more connected to ethnic cleansing than atheism. It's possible for atheists to engage in ethnic cleansing but they do it for reasons other than atheism.
Ism: represents Belief In or Commitment To. Theism: "theos" means god or God; "a belief in or commitment to God" Pan-theism: "pan" means All, Everywhere; "a belief or commitment to a god being everywhere or in all things" A-theism: "a" means Not, Negative-of; "a belief that there is no God" Mono-theism: "mono" means One, Single, Undivided; "a belief that there is only one God"
Atheism has no doctrine or dogma to refer to because it isn't a religion or set of beliefs. Atheism is merely the label applied to those who choose the "off" position to Theism (the belief in a "god[s]"). It is not, however, the statement "There is no 'god[s]'."
The antonym of atheist is theist. An atheist is someone who does not believe that god(s) exist, or that there is no reason to believe that they exist. A theist is someone who believes that god(s) exist and that there is sufficient reason to believe that they exist.
You'll need to make up your own mind whether you think theism or atheism is better. I suggest you look out whether there is any evidence for a god or gods; or you investigate which one actually has the better arguments. My own, personal, opinion is that there is no good reason to believe in a god or gods.
Theism is the belief in God, atheism is the absense of belief in God, so they are largely opposites. The only similarities is that they are both concepts associated with the philosophy of religion.