I can't say one brand is better than the rest as these things are built so fast and kicked out the door so quickly that quality control is non-existent. The line workers are paid by the piece so quantity is everything. I met a guy who worked the line at Keystone for four years and he said he'd never buy one.
My Voltage was a prime example as it had many problems in the first six months. Except for the broken main slide, I did all the repairs myself as I didn't want the trailer sitting at the dealer for months on end. Since that time the trailer has been very reliable.
2013 Chevy 3500HD CC dually
2014 Voltage 3600 toy hauler
2019 RZR 1000XP TRE