不像is more colloquial than the other two; and it also has the meaning of "dosen't look like", which the other two are not often used for. e.g 他（长得）不像他妈妈。 不同于is the most formal of them all, and although both 不同于and 与……不同 can be placed in front of the subject, 不同于is the one that's probably used that way more when you really have to use it. e.g 不同于荷花，菊花是开在秋天里的。/ 菊花不同于荷花，是开在秋天里的。in these two sentences, I personally think that the first one is more accurate and sounds better. Hope this helps.

unlike means exactly 不像..... or 不同于...... 与/和.....不同 means "be different from" I am different from you. 我与你是不同的。

All of them can be replaced each other in your sentences. All of them means to take two stuffs to comparsion.