I think if it's limited to two character and two human inductees per year then there may be more interest, obviously 2010 was a bit of a crack a boner moment with such a great idea and they went a bit nuts.
Ravage for this year would be great, such an iconic character, one who spoke in the original comics but not in the cartoon and of course Jetfire/Skyfire I'm going to be biased towards but perhaps not deserving this early, I like the idea of later cartoon series characters going in, it brings in the *cough* younger Transfans among us.
Griff you have listed many worthy names some I know and some I would have to Google but I think for you to say that to induct Nimoy this year would be a knee jerk reaction is way off. As a 9 year old I didn't know what a voice actor was and apart from Cullen (for me known as the voice of Optimus Prime back then, not by his name) popping up in Voltron I never recognised any other voice in a cartoon, but when I heard that "Spock" would be one of the voices in TFTM I was so excited and I remember kids who weren't interested in Transformers (yes they did exist) talking about the movie because Spock was Galvatron. Nimoy early on also crossed the boundary from pop/nerd culture to the mainstream, yes not uniquely a Transformers thing but thanks to the Bay Movies Transformers has like Nimoy transcended from pop/nerdom to the mainstream making it the juggernaught it is today.
Anyway I'm waffling on to much here and everyone will have an opinion, but it's all good discussion because of our passion for Transformers 

So say we all.
Oh, whoops. BSG outburst
I still function.....................while killing threads. ;-)