Like everyone said and I agree they are really big and heavy to carry. But hey if you can deal with the size and weight constraints enjoy it. But for which gun to choose I would say get them both.
They are really cool guns to enjoy and certainly will get the job done for sure. Now when I set aside my love affair of guns and think logically about which gun to get, personally I would go with the S&W. First of course is because the S&W cost less. Second is that the rest of the money you can save from not buying the DE you can spend on ammo to go train and of course have fun. Third reason is that the S&W is a lot lighter and the overall length is shorter than the DE in which both of these factors will lead to easier carry. But if your recoil sensitive the DE will be a better choice do to it being heavier. Last but not the least reason is S&W has good customer service just in case if anything goes wrong.
The Yankee Marshal (yeah I know weird name) actually recently done a video of S&W customer service. Like he said in his video you be the judge if they have good service or not.
By the way have you seen this
DE .357? Its the L5 model which is 1 and half pounds lighter and more compacted than the DE .357 you have linked. This one will be a lot easier to carry as well.