Bosch blades are made in Switzerland, Festool in Germany and are pretty similar, but Festool does have the TRION series of blades that are thicker and have less deflection when cutting thicker stock.
My Dad just bought some Festool blades for his Bosch jigsaw earlier this year and really liked them, but I don't recall if he thought they were better. I'll try to remember to ask him the next time I talk to him.