I agree they are both great boats. We have a 1993 Mariner and are in our 3rd season with her. Main things that attracted us to the Mariner were the roominess and set-up of the cabin, lower flying bridge (my wife doesn't like it too high), and since she is claustrophobic, needed a berth with a lot of head room above it, which most boats don't have (and new Mariners don't either). All of these turned out to be true and major factors in our enjoyment of her whether hanging around the marina or going away for the weekend.
On the ladder, we liked the way it looked, but figured we would probably never use it, especially with me being a big guy, but an interesting thing happened one day when we were out cruising with some friends. My wife went into the cabin to get a drink, closing the sliding glass doors, and when she went to come back out the door was stuck. The lock broke and a piece dropped down and somehow wedged itself in a place where the door couldn't be opened. We were all up on the flying bridge and noticed it had been a while since she went down, so I had someone take the helm while I went and checked where I saw her in panic mode banging on the door. After realizing I couldn't get in either I went back on the bridge, cleared all the stuff off the hatch (used that area to keep vests and other stuff since we never use the ladder). I then went down the hatch and helped my wife get up the ladder and onto the bridge. Was not a great experience, especially for someone claustrophobic, but from that point on we really appreciate having the ladder and we never have it locked in case needed for an emergency.
Stu