For rollers, the UTC are economical but of course very light weight and not as sturdy. The 5 Star is very good quality and then the type of 5 Star is just personal preference. Some are lower to the ground which some people prefer as it is more streamline and others are higher so they are easier to bend down to. Some of course have wheels like the LP and FM that have lockable castor wheels or the MKII has just one wheel on one end only and can be moved in one direction only.