As mentioned above, practice with a "daylight" roll, in daylight, on the stainless reel. When you get it down, close your eyes. Pretty soon by feel you will know positively when loading is going well, and when you have a problem that requires you to back up.
With the film started in the reel, and with a slight curve across its width, you can push/roll the reel with a 3-4 inch length of film.
I have Hewes reels, and also the house brand from Freestyle Sales. The latter have also worked great for me.
Some of my 35mm reels have two tabs that catch the sprocket holes. These work well. As for the spring clips on my others, and on the 120, I insert the film just ahead of the spring, and hold this leader in place as I get the coil going. I find it much harder to get the roll started properly when using the spring, and I have never had need of the spring, either, so I just use it as a starting point.
If a reel is dropped and bent, you either need a new reel or a good reshaping to get the old one working well.
I have never used the plastic reels.