RBC rewards is offering a 50% bonus when you convert points into Avios through December 31.
Through the end of November there is still a 25% bonus on transferring points to American. For most awards I prefer that greatly — for connecting itineraries, for long haul itineraries, in many cases premium cabin itineraries are much cheaper, and no fuel surcharges except on British Airways flights (and a very modest charge on Iberia).
This is a hot bonus. People can use this to transfer Aeroplan to BA at near 1:1. I earned many thousands of miles for free using the AP Star Challenge earlier this year.