There is no one stand that is right for all types of deer hunting. For bow hunting I use portable stands that I leave in the tree for the season, to get into these stands I use a screw in tree step like the one pictured below, I take the tree steps in and out with me each time I go so hopefully no one else will use my stand. I use to leave them in but had them stolen so I take them out now, I have been lucky so far and have not had a stand stolen yet. I do use a chain and padlock on all of these stands. I have a mixture of different portables one of them are pictured below, you could also use this type for shot gun hunting but I would not recomend them for all day hunts.
To hang these portables I bought a used climber for $40 it works great as I have a stand to stand on while I am hanging my portable, I feel much safer this way rather than standing on a tree peg and trying to hang a stand.
For shot gun I hunting I am fortunate enough that I have four very comfortable permanent ladder stands, they are like small decks with railings around them, my daughter and I can sit it one very comfortably together.
I also have a Tree Lounge that I use for shot gun when I am going to sit all day. This is by far the most comfortable stand I have ever sat in, I feel very safe in this stand, it does take some time to get use to using and you need to practice a few times with it and it is a bit of work to pack it in and get it set up. You also have to find the right tree for any climber basically they have to be straight tall trees that are not to big around, but with all that being said IMHO there is no safer more comfortable tree stand than the Tree Lounge
No matter what kind of tree stand you use please remember to always wear a safety harness I recommend the full body style harnesses.
PS. I am not sponsored by Tree Lounge