How long do you intend to stay in the house? Is it for the Master Bedroom?
If you buy a Drake you may second guess yourself later on, wishing that you had bought the better cleaning toilet (some have complained that they have to clean it more often. All toilets will need occasional, if not weekly, cleaning.) If you don't buy the Drake II because you want to spend as little as possible, then later on you may wish that you had gotten the better toilet.
https://terrylove.com/forums/index.php?threads/toto-drake-toilet-product-review.5241/
Some women don't like elongated toilets because some supposedly tend to splash in the front. (The Drake doesn't splash upwards when it flushes.) The same may be true of the Drake II (front splashing.) Other members will have to chime in. Still other women don't like ADA height toilets if they are of small stature. My mother is like that.
https://terrylove.com/forums/index....ii-gwenyth-owner-comments-and-pictures.26275/
I didn't go with the CEFIONTECT because some have said that it doesn't help all that much with staining, while others have said that it does. I thought that it was impractical since it costs $100 more and since I was buying two toilets. I love keeping my Drakes clean. It's like the guy who likes to wax his car every weekend.
I went with the Drake because of the water spot size, the Drake being bigger. It wasn't until I saw our maintenance man at work turn down the Eljer toilet to about 0.8gpf that I figured that it doesn't really make all that much difference, just as my going with the Drake 1.6gpf because I feared that 1.28gpf wouldn't provide enough bowl cleaning, it wasn't until I actually used the 1.28gpf Drake that I saw that it flushed just as well as the 1.6gpf Drake. Which is why I consider the Drake 1.28gpf ADA Elongated probably the best bang for the buck. The Entrada seems to be the new best bang for the buck champ, now, if you can get past the looks (which just begs the question as to why anyone would buy a A.S., some Glaciers, AquaSource or Kohlers since they aren't the greatest looking tanks.)
But, if I had to do it all over again, I probably would go with the CST454ECF with a slim Kohler seat for my master bedroom. I'd probably go with a regular height 1.28gpf toilet with the thick seat for the hallway for children and those that don't like ADA height toilets.
As far as streaking goes, I suspect that all water efficient toilets streak and spot. Since I'm single I don't worry about streaking under the water line because subsequent urine flushes typically clean them. Spotting above the water line is another matter, though. For that I have a toilet brush and some dish washing detergent, which I apply immediately least the spots harden. Maybe twice a month they spot. Depends on my diet and whether I've drunk very cold or very hot beverages in the morning. ymmv.
If you're thinking of the Drake II 1.28gpf - go for it. It's a handsome toilet. The Drake 1.28gpf ADA Elongated, CST744EL, is nice too. The difference will be how much space is behind the tank. With my Drake it is about 1.25", The Drake II is 13/16"; you can cheat a little to get it a little closer by working with the flange bolt position.
I guess what I'm trying to say is - don't cheap out by buying a cheaper big-box-store toilet. Treat yourself to something you will take pride in - especially since you will probably be living with it for another 20 years. Otherwise you may end up like me and will always be second guessing yourself. Still... I love my ADA Drake. I just think that I would love the Drake II even more.