The Bahco is more robust than the Silky, no doubt. IIRC it cuts on both the push and the pull, too. However the Silky cuts better and faster despite only cutting on the pull. Certainly there's a lot of flex in the blade of a Silky and you can give yourself a scare when the blade bends/flexes but so far I haven not seen one break. Probably it's easier to break a Silky than a Bahco especially when you get into the longer ones. All that said I gave away my Bahco after using the Silky saws for a few years.
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“I'd rather have questions that cannot be answered than answers that can't be questioned.” —Richard Feynman