Considering adding a lift - thoughts on 2-post vs. 4-post?

I'm contemplating a lift too and leaning toward a four post. Mainly for the reason of safety as my sons will be there unsupervised. It is without a doubt better for storage, and the weight will be distributed over four pads as opposed to two. You also don't have to anchor a four post in case you need to move it for any reason.
Agreement,with Leadfoot,here....
Four post,would be my choice....I have sold lifts,and quite frankly...those two posts scare the baracus out of me...Four post takes up room,but safety calls"" old school ''....out of me ,here... I have wrenched on both,seeing a 5500-6000 pound late model pickup flex(on two) steel arms ,scares me to death.