Well in that case, Harvey, I'd suggest the V6. It's the same engine as in my Highlander, and it is very good for towing.
I had a V6 in a Ford Windstar, it didn't have much oomph but got the job done towing. Went to a Mercury Mountaineer with V8, thought it was much more powerful. But when I got the '08 Highlander with 270HP V6, it put the Merc V8 to shame. That Toyota V6 with 5 speed auto is great for towing.
To every thing there is a season, and a time to every purpose under the heaven... --Ecclesiastes 3