I do not have Rad City bikes but I do have e-bikes with fenders including a step through and did a lot of research.
I ended getting the Easy Fold because it seemed so well-designed and was so easy to store in the car overnight when traveling or in the garage, along with the ramp, and other features.
I have only used it once, to bring the bikes home, and it took a bit to figure out the best clamp position, but that is probably true of most racks.
I have been concerned to read of a few reports of the arm coming loose from the rack but hard to know the frequency of that and how many were operator error. I will be using a safety strap as a backup. Seems like I shouldn't have to, but better to be safe than sorry.
The Saris seemed nice but not as nice as the Easy Fold, not as easily stored, and I was put off by several reviews complaining of bad QC....racks put together wrong, missing parts, labels slapped on crooked.
The Hollywood looked like a very solid rack and I liked that, but primarily for 2" receiver.....no anti-wobble for 1 1/4 receiver. Initially I liked the look of the wheel baskets (which Easy Fold does not have) but then I read a comment that their wire design means that all the bikes weight (and impact of bumps) is on those 2 points of the bike wheel, not evenly distributed. Don't know if that is a legitimate concern or not. Also very big and heavy which was good for sturdiness but not good to handle and store.
I did not look at the BuzzRack.
The Kuat and One Up users absolutely love their racks but like many, are problematic for those of us with fenders.
So I got the Easy Fold based on my research but have not used enough yet to make friends with it.
Hope that helps.