I was awake early last time and a little grumpy, any way. I've had all 3 sights and found all 3 actions similar but quality differ. First the SF. I found this sight look's the part but the front grub screw that holds the pin never tightened properly even when tightened to death, the buzz off this nearly drove me nuts. Saying that the price is quite reasonable and with a bit of lateral thinking this can be over come. Dual Click Aluminum This was the first quality sight I've had and have had no regrets. Reliable sight, worth the money to me. Ultima (carbon) This is the sight I currently use but that being said I do not find a big difference (80$ difference) between both. Do not get me wrong I love this sight, I believe it takes (a little) more of the vibration(but this is minimal) more than the Dual Click Aluminum. Alas which is better? depends what you need. If you are just starting I would invest my money in something more fundamental ( parts of these sight blocks wear out too quickly for a long term investment). If possible try each of these sights.
I do believe we come to the answer that can be the most honest, yet, most frustrating in archery. It is an individual thing that each archer must discover for themselves. What suits you.