I have a pair of Durst reels that are now about 25 years old. They are similar to the ubiquitous stainless steel reels in that they load from the center out (no ratcheting), but they are better in that the cross section of the spiral groove is square. Conventional wire spirals have a cross section that is slightly flared because of the circular cross section of the stainless steel wire. As a result, film tend to want to slip out of the groove and into the adjacent groove - thereby resulting in kinking, binding and other loading problems. But with the square cross section of the grooves in the Durst reels, film tends to remain in the groove. Unfortunately, I haven't seen any new Durst reels in more than 20 years. Tried calling the US distributor for Durst, but there wasn't anyone there who even remembered that they used to carry these things.
Second best is Hewes stainless steel reels from the UK. They are slightly more expensive that other brands, but the clip that attaches the silm to the center of the spiral is superior.
The other end of the spectrum is any stainless steel reel that has been dropped on the floor - cuz dropping causes them to distort, and once distorted, film will not load evenly into the reels.
The walkin-style plastic reels (traditionally called Yankee reels cuz they invented them, but now also offered by Patterson and others) are OK. Only stipulation is that they must be abolutely dry to work. Even the smallest droplet of water is enough to cause film to stick to the reel and not walk in properly.