The correct phrase grammatically is "different from". Many people incorrectly say "different than". Both phrases are used but only the first is correct. "I am different from you because I like red and you like blue."
The phrases "different with" and "different to" are not correct phrases.
"Similar to" is a correct phrase. "That shirt is similar to a shirt I already own."
"Similar with" is not a correct phrase.
I hope this helps!