I am glad that you asked this question, there is no sense in recreating the wheel.
My first progressive was a Dillon Square Deal B that I believe was for 38 Specials. After I bought the conversion kit for 45s, I decided that I needed a more versatile progressive for handgun ammo. Lees were never an option, because I was (and still do) loading precision rifle cartridges requiring full length resizing, and Lee had a poor reputation for the press housing bending under torque ... that was 40 years ago.
I graduated to a Dillon 550B in the early 1990s, and I have never regretted the move. I can easily load 250 rounds an hour, and I am only limited by my cast bullet production rate.
If you are planning on reloading one or two pistol calibers in quantity, I would suggest that you look at the Dillon Square Deal B. If you plan to reload more than two pistol calibers, or plan to reload rifle cartridges in addition to pistol cartridges, consider purchasing a Dillon 550B.
They are expensive now, but after a few years, you will never regret your purchase.