Question:
Is there any sin considered worse than another sin or is a sin just a sin?

Answer:
Well, to be honest with you, I searched the Bible over and over and found not a single verse which clearly gave a cut and dried answer to that question, but I did find this: “…the soul who sins will die” (Ezekiel 18:4). “For all have sinned and fall short of the glory of God” (Romans 3:23). “For the wages of sin is death…” (Romans 6:23). “For whoever keeps the whole law and yet stumbles in one point, he has become guilty of all” (James 2:10).

According to these verses, is there any sin, no matter how small, that will allow you into heaven? No, there isn’t. But, no matter how many sins we have committed, thanks to our Saviour’s love (John 3:16), we can go to heaven.
That was one way to look at that question, from God’s point of view. Another way is form ours. Let’s say one person killed someone, and the other took a cookie from the cookie jar without asking. Who has committed the greater sin? Well, of course we think it would be the one who killed someone. Right? But, is that really true? According to the verses I mentioned above, both sins would keep us from reaching heaven! So really neither is worse, so I guess the answer should be that a sin is just a sin, no matter how big or small.