I went to my local Cabbala's. They had the Hornady, Lyman, FA & RCBS on the shelf.
Hornady - This one was in a sealed pkg. So I could only look at it. It was very lite in weight. It was a hollow plastic body.
Lyman - Very wide & weighted base. It is all plastic. The base has a non skid material on the bottom. The tube is held in place with 'O-Rings'.
RCBS - The measure body is either a Aluminum or Magnesium die casting. The tube is aluminum. The Black Rubber base is weighted and give very solid feel.
FA (Franklin Arsenal) - This is very heavy. I could not remove from the package. The tube is held in place with rubber 'O' rings.
All of them are larger than I envisioned.
I chose the RCBS.
I could take it out of the box. I liked that they let you handle & exam their product. The extension for the feed tube makes it more universal. The tube can be angled like on the Lyman unit. It has the weight and heft close to the FA unit.
When I put it on the shelf next to my scale It was clear I needed the height of the RCBS or the Lyman. My scale is on a glass tile about 3/8" thick. So the tube if I sat just the cast metal base of the RCBS was at pan height and not above it. The Black rubber base fixed that. I like that I have the option to cant the tube down or not based on Powder shape.
It did not spin so smooth so I gave it some graphite dust and wella... smooth. I read that trick on a review of the Redding unit's cast iron body rubbing roughly on the feed tube.
*** Most internet pictures have the RCBS unit incorrectly assembled. You need to look at how RCBS shows the tube & bushing assembled.
http://i.ebayimg.com/images/i/291483983752-0-1/s-l1000.jpg