I'm seeing a Cirque du Soleil show at the Barclays Center, but thought I could spend the day-walk the BB to Manhattan and perhaps back, eat at Grimaldis and then see the show. QUESTIONS: Which is the best subway to the BB from Barclays Center? If I don't want to walk back from Manhattan, which is the best subway back to Brooklyn...around Grimaldis? Lastly, any other recommendations if Grimaldis is packed? Thanks!