I have done both Moorings in BVI and CYOA. Both are "good". Advantages and disadvantages in starting in USVI, but to me, the potential for "newbies" to be in relatively rough water coming out of CA definitely pushes me to BVI. (Think Christmas winds).

In BVI, I feel TMM is superior to Moorings in care of boats and certainly more customer service oriented. Customized 1 on 1 boat briefing and chart briefing. I felt so strongly about TMM, I put my boat in their fleet.

With liberal use of engines and generator whenever moored, fuel generally around $325-350 per week.

Check out TMM.