Both are correct! -> "Compare to" is to point out or imply resemblances between objects regarded as essentially of a different order. (* ) Use "compared to" when highlighting (or comparing) the similarities of one thing to another. Ex: E.g. The human heart can be compared to a pump -> "Compare with" is mainly to point out differences between objects regarded as essentially of the same order. (*) Use "compared with" when you are looking for differences. Ex:CEO’s now earn 419 times the pay of blue-collar workers, compared with 42 times their pay in the 1980's.

For your information: I searched the Internet on: compared to vs compared with and got numerous hits to answer your question. This website (http://grammarist.com/usage/compared-to-or-compared-with/ ) states the following: To compare two things is to evaluate them in reference to each other, their similarities and their differences. Both prepositions to and with may be used with this verb (e.g., compared to and compared with). In most situations they can be interchangeable and your meaning will be clear. A century ago, with was the favorite. Now it has fallen out of favor and compared to is found more often. If you or your audience are focused on nuances, there is a traditional distinction between the two prepositions. But again, most of the time this difference is disregarded and to is the favored preposition for all comparisons. Compared with is usually referring to two objects of similar classification (e.g., dogs to dogs and cats to cats). Within this similar order, the user is speaking of the differences between the two objects of comparison. Compared to is referring to two items in different classifications (e.g., dogs to cats or cats to cars). In these differing classifications, the user is pointing out similarities between the two seemingly unrelated objects. Again, most of the time the difference in meaning between to and with goes unnoticed by readers. However, there is always one or two that will appreciate the distinction. ------------------------ While this supports Jane Lo's comments, the distinctions are not strictly enforced in today's society.

"Compare with" and "compare to" are almost the same. Ex: The report compares the pollution with/to those in other cities.