In this case, the first collection of the Transformers vs. G. I.Joe comics by Tom Scioli and John Barber.
Allow me to reminisce about my earliest G.I.Joe and Transformers memories. I have the first 30 or so issues of Marvel Comic's original G.I.Joe run from the 80's. I watched a lot of the first few seasons of the cartoon. The toys were pretty neat, but I was too old for toys by then. My G.I.Joe toys were the "adventure team" run from the 70's which were big dolls with changeable clothes and weapons and stuff like "eagle eye"s and "kung fu grip". But the newly re-imagined team was quite fun, and the early Herb Trimpe art in particular I found very fascinating. Around this time the Transformers premiered. I watched the first few seasons of the cartoon, but didn't get the toys or read the comics. I think the downfall of both franchises, to me, was the constant addition of new characters and shuffling of older characters into the background. The toys were the big money makers, and the shows and comics became too much advertising for the sale of the toys. Character development wasn't a priority, and that, coupled with my age, led me to dropping interest and moving on to other things. But the ideas were still very cool.
And everything is a lot of fun! I look forward to reading more toy vs. toy action!