Hi Greg
First of all I use several types of loading presses and all have their uses , I will try and clarify if possible for you !
I will start with the biggest that I use, this is an RCBS Ammo Master Auto 11 88704 , it has place for 5 dies in station , this press has 5 stations on the die plates so it is progressive , it has a auto prime facility too , this is made to move automatically round through the different stages one at a time , all you do is put the cases on and put the bullet in the case . This is a very large heavy press made for doing large amounts of ammo at one time with little effort , this is a very strong and well made press they are a bit heavy on the pocket though $ This is the super douper fantastic heavy duty press !
Next is a Redding T 6 Turret press , again this has place for 6 dies in Station the new T 7 has 7dies instead, this also has an auto prime facility too , these presses have only one shell holder thus you can only load one round at a time by going through the different stages one at a time till the round is finished ! This is a fantastic heavy duty press , built to last a lifetime !
Next up is my RCBS Rockchucker 11 09366 press this press is very well made , heavy and very strong, it only takes one die at a time and one shell-holder too, that means on size round and you have to go through all the die stages one stage at a time after changing each die. This is still a very well made heavy duty press built to last a lifetime
Next up is my RCBS Reloader Special 5 09285 press, again a very well heavy press and made with stronger linkage than its predecessor , single shellholder single die operation again , primer arm and primer catcher. This is still a very well made heavy duty press built to last a lifetime
Next up is my RCBS Reloader Special 09356 press , still a very strong and heavy press , this is single station press and was one of the first to fit the universal primer feed facility , again this was for doing one round one stage at a time till complete ! Again this press was very well made and built to last a lifetime !
Then my two trusty old Lee Single station Challenger Presses, again one die and one shell-holder thus one round at a time , primer tray and primer attachments single and multi, these are not quite as strong as the RCBS but at a fraction of the price and if you look after them they will give you a lifetime of use !
Lastly the Sinclair Arbor Press, This has a multitude of uses but it can be moved around with you in the house on the range on the hunt , so these are a very little versatile press the dies are single stage one stage at a time , as far as I am concerned and more so with having one or two presses that the dies that are used in the Arbor presses , are slightly more pricey than the standard press dies.
This press for me for its overall size and convenience has to be the winner because you can take it anywhere with you if need be !
Hope this has helped a little
Steve