Sorry dvt, didn't mean to step on your prejudices! For myself, I've had a choice for years as to which type to fly, but after sifting the B.S. have decided to eat my meals in comfort with a tray table and sidestick readily to hand.
However you do make a good and valid point that the Boeing is capable of rudder reversal from the steady state sideslip...
My reservations on slipping large, swept wing aircraft are the same as others have stated; largely concerned with control response, material fatigue, airmanship and comfort.
Dire circumstances notwithstanding, perhaps it is better to recognise the 'high and hot' situation earlier and do something more appropriate than resorting to side/forward-slipping. A go-around could be pro-active management of an unstable approach.