First up, we have Waverider/Diver. He was the first one I got in a huge lot right when I restarted collecting G1. Luckily I had a shell sitting in my parts bin as the one I got with the complete figure was pretty badly discoloured.
His inner bot turns into a "submarine" of sorts. Most of the regular Pretenders fall short in the alt mode department.
The second one is Cloudburst/Phoenix. His whip is fairly difficult to find unbroken. Got him just a couple weeks ago along with the car dasher.
Lastly, we have Landmine/Lander. He was sold as a mail away in Japan and is pretty rare. He is one of the reasons I decided to not worry about the boxes and just get the figures for the Masterforce Pretenders. I got him a while ago from a TFW member.
He turns into a car I guess.
Personally, if I hadn't watched Masterforce, I probably would have skipped Pretenders minus a couple stand outs like Bludgeon and Thunderwing. But as it stands, I have a slight appreciation for them, and they do look decent in group shots.