As per usual, my hands are not your hands. I have 20cmx10cm ~ish hands, have fat fingers, and am super sweaty, making gripping most mice a royal PITA. Your best bet is to try them all in person, for at least a couple weeks, to give yourself a chance to adjust and see what feels best, whether you want a heavy mouse or a lighter mouse, smaller mouse or larger mouse, whether you like the more oval shape of the Hyperion mice/g pro, or the safer G403 shape, or a diamond like the G302/303.
It's just that of all the mice that Logitech has designed recently (so not including the ones reusing the old G400 shells), the 403 has the "safest shape".
I don't see how my hands cramping over the G402 makes me a fanboy. I didn't tell you that my hands also cramp quickly over the old naga (eww), SS sensei, every corsair branded mouse ever, and like every ambidextrous mouse ever, even the renowned FK2. I've done my fair share of trying mice, and have found that for me, my hand likes the shape of the IE 3.0 , Rival 300, and this cheap chinese Redragon Perdition the most. The DA is still relatively new to me, since I've only had it for a tad over a month, but have had the other three for at least a couple years, and the IE 3.0 for... forever (found it in a dumpster of all places). I want to get my hands on the g403 wireless next. I hear good things about that Logitech wireless technology.
TL;DR Try the mice for yourself, and take everything we say with a grain or two of salt. None of us can tell you how you will feel about a specific mouse. And none of us should tell you how you should feel about a specific mouse.