Samurai Prowl for me, even without the armor, he look much better than the original.
I didn't bought Blurr, his character never interested me and looking at the box, his toy doesn't seem too. I might check a video review if it can change my mind. I said the same thing for Lockdown, like he was un-proportioned and ugly but end up liking his toy and have Lockdown, Stealth Lockdown and Blazing Lockdown.
Is Blurr's toy that good?
Swindle, at first I didn't want to buy him because he look too small in robot mode and his paint look cheap but I end buying during the TRU sale and because I liked his character in the TFA. In the end, I like him, just wished he was bigger in robot mode.
Waspinator, I was disappointed... I expected him to be bigger/taller but he just as tall as Soundwave and Swindle without his wings. He has no weapon and I would prefered if his head had his mouth open like the front cover art.