As it has been posted by everyone else, it is a step up. I also prefer trailers with a ramp but either one is ok. It's also a matter of what the horse is used to. I like the ramp because it eliminates them trying to guess where to step down when unloading backwards. With the ramp I find its less stressful as they know the ramp's there and they don't have to go thru that.
My ultimate dream trailer would be one where you unload coming out the side which completely removes coming out backwards.
Trailer shopping can be hard because so many different factors come into play.
Good Luck with your search