I don't know if this helps, but the MAN-LON winter frequencies are as follows;
MAN-LHR 12 Daily British Airways 757
MAN-LHR 8 Daily British Midland A321/734/733/735
MAN-LGW 7 Daily British Airways 757/734
MAN-STN 3 Daily British Airways BAe J41
That's 30 Daily services, 27 flown by jets with more than 117 seats. I don't know how that compares with other routes!