Of course your budget will really dictate some of your decisions.

In new trailers you will find several classes of trailers,  On the higher end are the trailers with all the bells and whistles.  That have solid wood cabinets and top of the line ammenities. Often with higher end built in entertainment, flat screens tv, DVD players, sound systems. These trailers are often built by one trailer manufacture and the LQ is built out by a second company.

Then there are the mid range LQ. Where the trailer manufacture has a division that builds the LQ. Often as they build the trailer. These often use Particle board or MDF faced with hardwood veneers for the cabinets vs solid wood. Plastic, fiberglass or composit fixtures, such as toilets, sinks in place of porcelain fixtures. Vinyl flooring in place of ceramic tile.

Each of these trailers can provide a dry place to sleep, thermastat controlled furnace, built in fridges etc. Most of these components are going to be the same.  There are only 2-3 brands of fridges, furnances, air conditioners, stoves, water pumps & heaters, power convertors etc that are commonally used in the RV market.

As you consider brands, realize that almost any RV dealer will be able to service the appliances. The real difference will be the size, slide out or not, and the type of materials used to for the build out.

Look at the size you need. Is it going to be a minimal weekender, or a full blown luxury follow the circuit trailer. I just want a dry place to sleep, but a rodeo cowboy living on the road for 6 weeks at time, may want more ammenities.

I would recommend going to an event,like Equine Affair, Quarter Horse Congress, ect,where there will be lots of trailers from many manufacturers. You can walk thru them ask questions from the company reps, then go right next door to compare to the next manufacturer. You can keep going back and forth until you really know one from the next.

I agree with going to a dealer and checking out as many as you can.  Every time we were camping my husband would see a trailer he liked and asked the owners if we could look inside.  Most people were happy to show off their trailer and tell us the pro's and con's of it. 

We had a 1997 4-star that was in great condition in 2011 when we sold it---the only reason we sold it was to upgrade to a trailer with full living quarters and to go from 2 horse to 3 horse.  Had we been able to afford it, we would have bought another 4 star.  We ended up buying a Lakota and are very very happy with it.  It is a mid-range trailer as far as cost and ammenities go.  I knew I wanted double sinks in the kitchen area and a full size refrigerator/freezer so that had an impact on the size of the living quarter we bought.

Good luck to you.

I bought a Lakota last year 15' short wall w/slide 4 horse. I had seen a few while we were camping and on line. I loved all the options that I could get for the price. We have been camping alot this year and just love it. We did not have any dealers around us so we orderd ours  from Lakota of Ohio and they just delivered it to us(that a funny story in its self) I can't say enough about Gary and his guys there I would do it again in a heart beat.