I load only handgun and rifle cartridges, sold my shotgun loading equipment years back.
I have an "L" shape loading bench with 4 presses mounted at different locations on the bench.
The 4 presses I have are 2 RCBS Rockchuckers single stage, 1 Lyman T-Mag turret and a Dillon 650 set up for 40S&W and 9mm
I use the Rockchuckers for loading rifle cartridges other then 223, the T-Mag for 223 and handgun ammo other then 40 and 9mm, the Dillon takes care of the 40 and 9mm.
If I was only going to have one press I believe I would choose the Lyman T-Mag for it's versatility, however when I first started into reloading I started with a RCBS Rockchucker.
Good luck in your reloading endeavors, it's a great way to use up spare time along with a way to shoot at less expense.
When reloading stay focused on what you are doing and stay safe.