You have pros and cons in all of them. Motorhome is nice because you don't have to get out of the unit to go potty or get something to eat unless you want to. If you don't want to break camp, you will need to pull another vehicle to drive.
We have had 3 campers and now on our 2nd 5er. The camper may be a little harder to get parked in an area vs. a same length 5er. Depending on size, you have to consider the storage. You have bed of truck free for other things if towing with a truck.
5er for us is what we are most happy with. Towing it is easier (for me) than was the TT. I can't compare to a motorhome as we have never owned one. I like the 5er because it seems to have more room than the TT and for the same length unit overall length is shorter due to the hitch setup being over axle. I don't think that the 5er is affected by wind as bad as a TT.
These are all just from my point of view. You are going to have to make the final decision depending on your own situation. What ever that is my you have Safe and Happy Camping.
