A few great places are a hit on my list. I'd say Bloomsbury is absolutely rocking for its garden squares and literary circles. For the fashion forward and food crazy, it’s Shoreditch. The street food is great around here, so are the backyard and the Sunday upmarket.
Camden for bars, nightlife and clubs-check the Camden Crawl and the Underworld music venue.
I stay at Greenwich, that's in South East London. The O2 arena is a wonderful complex to visit and hangout. Getting there is easy with buses, cable cars, boats and ferries. Everything is available. I feel Greenwich is one borough in London that deserves to be explored more. Its rich maritime history and incredible architecture make it worthwhile for a quick trip.