What's your hunting land like? What kind of trees do you have? Do you have an ATV?
Do you like to hunt multiple areas during the season or do you have a handful of go to spots?
If you are a little limber and like to hunt a lot of different areas a hang on is a decent option. A bit of a bitch to setup so I would strongly recommend setting up before the day of the hunt unless you like to get out EARLY(and even then this isn't ideal, I prefer to get up during the day and set my hangon up later in the afternoon for an evening hunt, then hunt the stand the next morning, late morning or early evening are the best times to set stands up). Another big plus with a hang on is you can set it up in the exact spot you want of damn near any tree. Low limbs will be a problem though if you use a linemans belt(which you really, really should).
They are more convenient than a climber because once they are up they are up and you don't need to climb the entire thing down to get to ground level to go take a dump.
If you have a lot of really straight, good size trees a climber might be a better option if you don't mind having to climb the whole thing up and down the tree any time you would like to relocate or defecate.
Ladders, well, do you have a few select spots that are your go to spots that you wouldn't mind being set up in all season long? The climber is definitely the best option once it is up. No fucking around with climbing sticks, no wrecking your knees and ankles trying to get a hang on up while you're dangling on some narrow climbing sticks, you can run up and down the thing etc. etc.
All depends on what you value as most important. If you go the hang-on route I cannot recommend Lone Wolf stands enough! I have a lone wolf hanger and it's fantastic. Rock solid, light as a feather, big shooting platform.
Climbers is a toss up between Lone Wolf and Summit. If you like a shooting rail and sitting in comfort summit has some better options, if you value weight and freedom of movement more then I would take a look at lone wolf.
Ladders? No Idea... the only ladder stand I have is a portable Pack-n-stack by rivers edge. For a cheap piece of shit it actually has served me very well. Easy enough to pack in the day of the hunt and setup is actually very easy and quick. If only the damn thing weren't steel with no noise dampening... That and it's only about 12ft off the ground to the seat.
Nothing beats sticking a deer from ground level, granted, but since I have went up into the trees I have definitely been seeing more deer and spooking less of them.