Where do I want to stay in Miami Beach, Florida?

I'm taking a trip with my boyfriend over New Years this year and we might want to do either a condo or hotel. They list under coconut grove, south miami, miami beach etc. Some say they're on Ocean Dr, or near the Trump hotel but all of this means nothing to me. We want a beautiful beach next to us, good restaurants/ shopping and some going out spots. As specific as possible would be great. Thank you!