Be advised that I own six Trilliums, so I am somewhat biased.
The question you are asking is a little more complex then you may realize.
With new trailers, you get what you pay for mostly. Bigfoot has been making trailers, off and on, for a long time. They have always made high quality trailers, but it is difficult to compare a trailer that is 30 years old to a new one. So, I will divide my OPINIONS
into two categories. New, (which I know practically nothing about) and Classic, (old).
In order of preference. Not a comprehensive list by any means.
(lots of standard features, built like a tank)
Bigfoot (big, comfortable, quality, did I mention big)
(innovative design, improving support)
Others, (just not enough info to form an OPINION
Bigfoot (High quality, big, heavy)
Trillium (light, well designed, fibreglass furniture)
Compact (various versions, VERY light)
Boler (same as Scamp
, and many other derivatives)