I think it really depends on the type of shooting/competition you are in and what you prefer. Getting out and trying different setups from other people might be your best bet. The degree of recoil may also change your choice of rest. Heavy rifles 30+ pounds should have a heavier duty support.
In BR we see bag squeezers who generally do equally well and their setup is generally the least costly, I.E. Hart Cast iron solid front rest ($200ish) and rear bag ($60ish). These rests are dependable and probably the best for contaminated or semi-stable environments.
Screw turners tend to use sophisticated equipment with windage and fine elevation changes (mechanical screws, hydraulics and joy sticks). Look fancy, are fancy, and are expensive...any better...well I think it depends on the system (shooter and equipment and type of competition). Hard to imagine them in the field....rain etc...
Personally, for bench work (and of the money) you can't beat a heavy solid Hart rest or something like that. Fancy adjustments do work best on solid tables or foundations and probably wouldn't even be used if the support for the rest isn't solid. You can also upgrade the std Hart rest with Windage tops etc.....as desire arises or $$$ surfaces...
Joe