Gulf Air have the smallest seat pitch (28") in economy of any major scheduled carrier. This is a big problem for me (long legs and big feet!) but if it is not a problem for you then they appear to offer some very good value flights.
TallGuy.
Edited to add some comparisons:
Qantas - 30"
BA - 31"
Singapore - 32"
Emirates - 32"
Malaysian - 34" (My favourite
. I did LGW - KL - SYD last year)