We did the Exumas (I know you asked about Abacos) 2 years ago for 6 weeks and it is so much prettier than BVI, the water and beaches. But it is a whole lot more effort due to tide, current and shallows. Would I do it again, in a heartbeat. But it took us about 3 weeks to figure the place out, 1 week would not have been as much fun as our stress level was much higher due to the tide, current and shallows.

Many of my cruising friends go to the Abacos every Winter and love it more than BVI.