I use an Ol'Man Multivision and I like it. It is a bit on the heavy side, but so am I so I needed one that was sturdy. It is. If you are a smaller fella, you could probably get by with one of the light weight climbers.
As far as a climber being safer than a hang on, I don't know about that. Seems like you could fall out of either one fairly easy, so wear your harness!
One advantage that a hang on has over a climber is you have more flexibility over where to hang your stand. Sometimes it seems that when I find an ideal location to hunt, there isn't a suitable tree for a climber nearby. You can use a hang on to any tree.
That which does not kill me only makes me more irritable.