Let's see...
G1 Springer: Shoulders are off, on the cartoon model the splashers become his shoulder pads, but oh well. The colour scheme is off, but that applies to every TFTM character but Wreck-Gar. Looks better without his detail stickers (same again). The tail rotor details could do with being painted. His arm movement's okay, not as good as Kup's, but better than Hot Rod's. He can do some slashes. The sword could be better, and would look nicer chromed, but it works. The vehicle modes are good, and are sufficiently different from each other when they are transformed correctly, something several people seem to be incapable of. 1. His wheels rotate in for the helicopter mode, bringing his folded arms out to be gun pods. 2. His splashers are on sliders, and they slide back for helicopter mode, middle for car mode, and all the way forward for robot mode. 3. In car mode, the engine section should be slid back. He has feet, they're where his back wheels are. Not the best but they look better than Blitzwing's. I would say get him. My specific Springer's not the best (loose joints, broken tail pegs, chrome wear), but I like him.
G1 Wheeljack: This guy looks alright. Arms can rotate at shoulder, he could be taller but oh well, and he's in scale with the original Optimus Prime. Get him, paint some eyes on.