This is my limited experience:
Our first MH was a 2000 Beaver Patriot, 43' overall, 34,000 lbs, no tag but the 8 airbag suspension. It was had excellent ride and handling and never was an issue except for a slight push from semi's and a bit susceptible to heavy winds but nothing to cause "white knuckles".
Now we have a 2002 43' Beaver Marquis with a tag, 44' overall, 43,000 lbs, and 10 airbags. Yes, we lost a bit of storage with the tag but still have about the same as the 40'.
Handling with the Marquis is just remarkable...tools along down the road with no fald-er-all from wind, truck. or ??? Downside is the lack of speed sensation and you can easily find yourself well above the speed limit.
IMHO, a good non-tag coach will be a pleasure to drive and certainly not having a tag wouldn't be a deal breaker. On the other hand a larger heavier coach with a tag is really great. Of course not all coaches will behave the same but, with the Beavers any of them are great.