Lincolns work well, the batteries will not take rough use, The seam of the battery will separate. This is not a fluke occurrence, it happens a lot.
The Milwaukee is much heavier, and lasts longer in colder temps. When warm out, it pumps about the same as the Lincoln, maybe a bit faster.
I have never handled or seen someone using a DeWalt. Lord knows I've been emailing them every year since the late 90's saying they should make one. I see the one you pictured is the new 20v system. Those (#@$%& could of made it with the old 18v system battery, I only have 5 tools that use that style. I'm sending another email.
The Alemite 18V is a very good gun. Pumps faster than you need it to. Very durable. It is also the lightest and most compact of all of them.
I have burned through two Lincolns in the past ten years. I wouldn't recommend them, due to poor battery construction. But this no-name gun pictured below just keeps going and going. I hate it, it pumps too slow. Fine for the planter or a gt, but not an excavator that uses up a whole tube of grease every single day. But I still have the damn thing, it won't die.