If I were buying today, I'd like to get an all (mostly) Aluminum one, single piston, super light and the single center wheel (like I have now). I only want the center wheel so I can jack up from the suspension when I want to (so you can lift right up to up to the back of the tire) with the single center wheel (if you take the handles off). But if you don't have that requirement it opens up a lot more choices, maybe even lower profiles that don't break the bank.
Personally, I'd get one of these if I bought today. They seem a little pricey, but all the mostly aluminum ones are. But what bugs me is neither is Amazon Prime. Which I really would like on something like this, in case I don't like it, it's and easy no questions asked free return. I often pay more for Amazon Prime for that insurance.
Both these look pretty nice. Probably out of the same factory in China. Both of these are only 27 lbs !!