Originally Posted by
PB53x11
Think about paying cash for the seats. Seriously. I've seen YYZ-LHR return (not recently, but I think the concept still holds) where fees were $750 (on top of points, obviously) but you could get a seat for $850. Your differential will be higher, but save the points for a route where you can minimize fees.
OP wants business class, where this is almost certainly never going to be the case.