What is the floor surface like and what are you moving? the answers to these questions will start you down the right path. In my suburban garage floor shop I use these (1351 and 1354) and these (141051 and 141052) depending what was on sale at the time. There are some differences but, in use, the experience is identical.
I used to use 4 swivels but, controlling heavy objects in a crowded space with 4 swivels results in back strain and damaged bystanders more than I cared for. 2 swivel and 2 fixed is not as maneuverable but, is more controlled in maneuvering ;-)
The side affixed, cam-style locks are pretty weak so I have gotten rid of all those or relegated them to non-locking roles. The dual lock (roll and rotation) serve me best. I discovered hat simply locking the roll still allowed unexpected pivot when applying lateral force (like when using a tool). So, I restate that what you are rolling on and what you are rolling around will dictate the best caster for your needs. HTH.
Any sufficiently advanced technology is indistinguishable from magic.
- Arthur C. Clarke