Recommendation towing capacity advice 3500 lbs

Thank you everyone for your input. You have been giving some good food for thought. Right now we are kicking it all around. We have a 2004 Toyota Sienna All wheel drive all the time with towing capacity of 3500 lbs. We are entertaining getting a hybrid travel trailer. We are looking to see if anyone has any input on 2009 Jayco, Jay Feather Ex-Port series M-17C or the Kz SPORTSMAN Classic 18 RBT. Does anyone have either one? Do you like one over the other? Lisa