Is there a significant difference between the jet blast from Airbus and Boeing?
Probably not.

Airbus and Boeing aircraft may even have the same model of the engine. For instance,  2.4 m diameter Pratt &amp; Whitney PW4000 is used on Airbus A310-300, A300-600 and also Boeing 747-400, 767-200/300. General Electric CF6-50 is used on both Airbus A300 and Boeing 747. 

I would expect much more differences between jet blast from of Airbus A380 versus Airbus A220. A220 is near ten times lighter (575 vs 60 t).