Considering A Wrangler - Could Use Help With What to Look For

Hey all. Been in this sub for a while. I'm debating taking the plunge soon. I'm looking at 2-door, hard top Wranglers. What specific things should I be on the look-out for with the following. All are manual, will be used in the mid-west and a second vehicle. I'm keeping my Yaris.

2012 Sport 103k

2016 Sport 120k

2017 Wrangler Winter/Sahara 122k

I was looking more intently about a year ago and I remember developing a preference for either a late-model TJ or a 2015+ JK. I don't care for the JL (too big and the style is just off. Plus don't like the big screen).

I kind of like that 2012 that I came across. But I'm worried there's a reason I wanted to stick with 2015+ and have simply forgotten in the meantime. I'm hoping for no/minimal modding by previous owner, but I'm not sure how I can tell.

Will definitely get under and look for rust. Besides that and seeing about mods, anything else I should keep in mind? Was there a reason for that 2015 rule I put in my brain?

Thanks all.