Mine is and has forever been the ACS MD-11 by Alain Capt downloadable from http://www.acsoft.ch/
However, I just can't install it on FS2002. It comes with an auto-installer package which just doesn't work on my PC. Tried the auto-installer package for FS98 and FS2000 and didn't work eaither.
Another slight dissapointed is the sounds. The FS98 version came with custom MD-11 sounds, although the sounds are included in the new download which works for FS98, FS2000 and FS2002, AFAIK, they are only used when you install it for FS98.