Anyone who says Starbucks has clearly never had a decent cup of coffee. That said, it depends on whether you're looking for supplies to make your own at home or whether you'd rather just takeaway. For the former, PS Coffee Tea N Spices is my go-to. For the latter, I really like Penny House Cafe. But some of the best coffee shops are in Manhattan; there's a great one not too far from Avengers Tower that Stuart, Felicity, and I frequent on breaks called Stumptown Coffee Roasters.