I have all the crimpers mentioned in this thread and more…
From my experience the best tool for the job tends to change based on the type of lugs and the size of lug used. The IWISS crimper works really well on the smaller lugs and cables, including the larger SB series Anderson connectors. That said, for the bigger bulkier lugs (TemCo) the hydraulic ones tend to work better because the dies have a larger cross section.
Both require / benefit from a light crimp and rotation of the lug in the die before the full press as they tend to “squeeze” some copper out of the die at times.
That said, both are more than adequate at forming the designed cold weld when crimping so mechanically and electrically they are where you want them to be.
While I dont use the hammer style for the same reason as you searching for something else, those appear to produce adequate results as well. I still prefer to use a HEX die as the results are more uniform and repeatable.
If you want additional corrosion protection, pack it with a dielectric before applying heat shrink. I do recommend buying adhesive linked shrink with does an excellent job of keeping moisture, dirt, debris out. I usually do that follow by one additional layer of standard heat shrink.