2720SL or 3124KS for a couple with no children?

This will be our first trailer purchase and prefer the TM after very thorough research. We are going to make a purchase within the next two months in either style, however, would like to know from the experienced which would be most comfortable for the money and for us. My husband is 5'11" and I am 5'10" in our late40's early 50's no pets or children. Am looking at a 3124KS for the space, comfort and layout but also would entertain purchasing a 2720SL, 2720SD or the 3023 if convinced just as comfortable. Will be towing with a Toyota Four Runner Sports Edition. Any suggestions or advice? Thank you.