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There are plenty of ways to create a DTM/DSM in both programs. All tools are good, but can be tweaked to give you results based on your precise needs - of which you haven't included any - in your question. Take a look at these tools, all of which were also discussed on gis.stackexchange, to find the one to best fit your needs ArcGIS - Topo to Raster QGIS ...

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