Antigua is a wonderful island with some incredible anchorages and beaches. But it is different from the BVI in that not every anchorage has restaurants and bars within a short dinghy ride, and the sailing is a bit more engaging and there are only two anchorages that I can think of that have mooring balls (Falmouth for a nominal fee, Green Island for free with gov't balls). But the anchorages tend to be in 20 feet or less of water and with clean sand holding so you shouldn't miss mooring balls. Whilst the BVI are "party central", Antigua is a bit more of "sail and explore". There are shallow areas and reefs in Antigua that are dangerous - but they are marked on the charts.

You would get your boat in English Harbour and should provision there. The other anchorage where you can provision is Jolly Harbour; but those are the only two places for easy access to groceries and a dinghy dock. Overall restaurants and bars are significantly cheaper than in the BVI.