You get what you pay for. and what you'd be using this for also...
First off - what kind of SUV ? (what motor in it)?
1. V-Nose & Smooth Top = cuts through the air better.
2. Most 6x10 V-Nose will have about 12" length at the centre.
3. Aluminum Frame vs. Steel Frame. (rust issues)
4. Square channel frame vs. C-Channel frame. - Square is stronger & heavier. Most aluminmium trailers are square channel.
5. Plywood vs. Composite. Ply would eventually rot from the inside and out. Composite will never.
6. Dexter axles - SINGLE vs. TANDAM. The Tandem will sway way less than the single axle.
6. Axle LOCATION - this is key!
7 . RAMP DOOR rear - with the piano e hinge'd extra - so it is will be easy to load low profile bikes.
8. Vents – when it gets hot, the trailer Is an OVEN.
9. Screw vs. Screwless exterior. The screwless looks much better, but with screw type – you can put in a new panel easily. Screwless is better for large decals etc.
If money is no object, I’d get V-NOSE, SMOOTH TOP, ALUMINIMUM FRAME, TANDEM AXLE, COMPOSITE DECKING, LED LIGHTS w/ Interior LEDs. RAMP REAR.