We just went through the same thing last year. We knew we wanted to get away from camping on the ground. We wanted some place to keep our camp gear so we can decide last minute to head out, grab some food and cloths hook up and head out. So the choice was Expo trailer with RTT or teardrop. For us hands down it was a teardrop. First my wife hates ladders, any kind or ladder. Add that to having to pee in the middle of the night and it's not going to turn out good. I found a few trip reports for my wife to read to get an idea about doing trips with a camper. Well I should have read them though first. One report was with 3 RTT's on trucks and trailers, and two teardrop campers. The trip was in SE UT in Nov, and they had every weather possible in 7 days. One night got to camp late, in the rain and had to setup camp. RTT people waited in the rig for the rain to let up teardrop people climb in and went to bed. In the morning RTT's had to pack up wet, No issues with the TD. Next night the wind kicked up in the middle of the night. Two RTT people had to take down the tents and sleep in the rig, the other stayed in the tent and didn't get much sleep. One of the TD people in the morning didn't even know it was windy. Another night it got cold and the aluminum ladder got all frosted and the person coming down slipped on the last rung and slipped off. No injury but something to think about. There were a few other things that convinced my wife that it was a teardrop or nothing. I was push up till then for the expo trailer and RTT because I planed to build myself. But knew that wasn't going to happen.
There are drawbacks to the TD, longer, probably heaver and wider. At first I wanted an all out hardcore off-road teardrop. But we are not hardcore off-roaders. We like easy to intermediate trails. We won't be doing Black Bear with our TD. LOL. Since we live in the desert we wanted to be able to carry water, if we had water I wanted a shower. Which added a hot water heater, and pump. If we that might as well put in a galley sink. All that adds more weight and more money. I made the inside much nicer than it needs to be, but why not, we have to live in a small space why not make it nice. My neighbor made a comment than the TD cabinets are better looking than her kitchen cabinets. She is probably right but that is added weight. I'm 6'2" so I wanted a queen length bed and a full galley which = more length. We also will have a real 8" thick memory foam mattress, sure beats the 2-4" foam in you find in a RTT.
So I guess the bottom line is where do you want to go. If you want the trailer to go anywhere the TV can go probably look into an expo trailer and RTT. If you want comfort and ease of camping go with a teardrop.
Todd
PS I'll be finishing my teardrop in the next month or so. Can wait to give it a good workout.