Starsaber is (pun only slightly intended) definitely star of the show. Despite being based on a larger figure than the others, the boisterous bulkiness of post-Season 3 Japanese toys works to its advantage.
His robot mode looks absolutely fantastic! He's pretty well articulated with shoulders, elbows, a turning head and hips that don't swing but do splay. He can hold his sword or stow on on his back and his head is made up of no less than five seperate pieces. He looks good even before the stickers are applied and when they are applied; he's awesome.
There are a couple of downsides. His stickers are incredibly fiddly, to the point where a magnifying glass and some tiny tools might help apply them (I used his sword, which is why his eyes and cockpit are a little wonky). Also his jet (?) mode is good, but the sword across the back looks a little awkward and his head jutting up looks downright odd. Also he has the same red issue as Henkei Convoy, although this only really applies to the crest on his head.
So that's my thoughts on the three. For $3 figures, they're amazing, though my recommendation relies on how much they cost you to import and how much you want them. Also it depends on whether you are prepared to take the time to carefully construct them and maybe even paint them. G1 Convoy would be fantastic for collectors of Prime, or for those who just want a mini Prime, Star Saber is fantastic in his own right, and Henkei Convoy...didn't impress me too much.
