JM,
just short of 10,000 total, about 2,000 on the 747. With the uncertainties of the moment, it's difficult to predict time to commend. When I joined Virgin, people with my experience were getting command in 2 years or less. Now it's more likely to be 5 to 8 years for new joiners. For me, I'd guess another year to 18 months.
No, the 744 isn't seen as a promotion. With only three types it's ridiculous to have a league table! We are careful with who we select for the Classic though, as there are fewer and fewer people who can handle a flight deck full of dials. The 744 (and the A340) are easy by comparison.
SuperTed
I agree! You just have to prioritise as best you can.