RoyHudd
I'm not sure whether MAN should be concerned or relieved that they would only be your 4th choice for a long haul diversion. Perhaps you find it surprising therefore that for CX and SQ last Wednesday afternoon MAN was their first choice. More's the pity that MAN felt they couldn't accept them, but fortunately LGW did despite their fog and holding delays.
BHX could only take 3 wide body diversions that afternoon but accepted 12 narrow body flights the previous morning including 8 Ryanair. I guess it's reassuring to pilots that some airports are responsive and accommodating when those situations arise.