Wow... this really is going to be a tough one to really come out with any kind of useful information for making a decision, because there's no one press that is the best at everything... It's all a matter of preference and/or convenience. The t7 for example allows you to have a number of dies already setup and ready to go, the progressive presses from Dillon and Hornady allow you to crank out ammo at a high rate. There are presses that accommodate the large magnum cases and bigger bullets.
I guess the question that should be asked specifically, is what are you looking for in a press? Accuracy, speed, caliber specific? Etc
For me... I don't mind the extra time a single stage press takes... I sort of enjoy going step by step. I have a lock n load progressive and don't even use it. I prefer my redding big boss II. I also like the Hornady bushing system... As I don't like having to screw each die in and out... I just think it's a smart design so it appeals to me. I changed out the redding adapter bushing and changed it out with a Hornady lock n load conversion kit. For me... Accuracy matters, and I've been extremely pleased with the Redding big boss II, however, I've heard good things about the forster coax and the Wilson arbor presses.
The last thing to consider is that it really doesn't matter how good your press is if you aren't extremely consistent about how you go about loading and prepping your brass, as well as if you have dies that aren't well built or are in poor condition. Me personally... I like redding FL dies, lee collet neck dies, and forster ultra seating dies... Which I now have for every caliber that I reload (except one custom cartridge... Which came with its own dies when I bought the gun ). I've found for me, this combination to be extremely effective, but others here will have found they get good results using other choices. For me... .5" or less at 100 yards is what I'm looking for and happy with. Some here absolutely have to be able to shoot bug holes.. Or they aren't pleased.
Guess what I'm trying to say is that most of the presses mentioned are good to excellent choices, capable of producing quality ammo, much better than the boxed ammo you buy off the shelf, but like choosing a rifle, it's a matter of what is important to you... And how much money you want to throw down. I'm very happy with my setup... Though I probably will get rid of the hornady lock n load progressive. Not because its a bad press, but because I really have not ever used it. My preference is towards single stage.... I just didn't know it when I started reloading! Figure out what matters to you and you'll be more than half way to knowing what to get.
Good luck man!
-James