I went through the OP's predicament about 15 months ago. My conclusions went like this:
Dillon, Hornady, and RCBS are all good machines.
*Dillon and Hornady both have a case feeder...a big plus but an expensive option.
*RCBS has the extremely safe and equally fast APS primer system...big plus for me. RCBS can use a bullet feeder but not a case feeder. Good enough unless you want total automation.
*Hornady has LnL but no removable die plate.
*RCBS and Dillon have removable die plates, that once set, no need to LnL excepting at RCB's fixed powder measure station.
*Dillon's system requires multiple powder measures (read expensive as hell) to really make their design sing.
*Big plus of Die Plate press design allows the reloading of rifle, in two fast stages, if you buy an extra inexpensive die plate. One plate has an RCBS Lube Die, and a Dillon sizer/power case trimmer. Second stage charges, checks charge, seats, and crimps on another die plate. The process of sliding and pinning a die plate (all set up) is faster than LnL'ing separate dies. I will concede that a LnL hole at the permanent RCBS powder drop station would be worth finding a good machine shop for.
*Powder measures on the Hornady and RCBS edge out the Dillon...but you can convert the Dillon to use Uniflows so that's not a biggie. Dillon users are all rich anyway, they can afford to buy 5 uniflows to mount in their Die plate collection.
It gets down to what you want to load and whether speed at the crank, or speed at changing calibers, is most important, and how high of a priority safety is.
Dillon with a case feeder and a bullet feeder wins the speed war at the crank...if you load a couple of pistol cartridges and you are adept at keeping it synced. Hornady and RCBS excels (a close tie with different +/-'s) for easier reloading of multiple calibers. Personal opinion is that the die plate wins.
If safety with primers is a priority, RCBS's APS priming system wins that one hands down.