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Definitely iOS. The developer tools are a lot better/easier to grasp. I also find Objective-C syntax to be very nice.

I heard the C is more for advanced programmers. can i use java (taking it at college) or javascript for iOS?

You can build an html5 app for either mobile platform, but it will have to run in a browser, not natively.

ok, but how would I get paid for my app? the only way i can think of is advertisements.

I have to agree on this one, no bias.