Also, to clarify, the one time a match takes into account a previous battle in our thread is in the case of a tie. If Professor Xavier and Thanos have a battle that ends in a tie, then the rematch would let both characters know what has gone on before when having the rematch the following week.
Also, remember, that some characters don't have complete knowledge of all battles that have gone on before. There are cases where we have alternate world characters...who obviously wouldn't know what their 616 counterpart did. Or, as we pointed out, the BND Spidey might be debated against some of his battles while being married to MJ...who knows what battles he actually did now.
Another point is realize that debates take a lot into account when you choose a character. I've been thinking about Skaar...and, as we still don't know a lot about him, it might hinder you in a debate. We know Skaar gets some of his power due to his proximity to the world he lives on. What are his power levels off planet?? Just because something is in print doesn't necessarily make it viable elsewhere.
Remember, while you get prep-time, you cannot use any other characters to help you prep. If you have Mr. Fantastic, you cannot go down to a member of the Avengers and use their database. Anything you do in prep-time must be something your character would normally have access to. (For that matter, Thing cannot use devices that Reed could make for him in a battle. He'd have to have Reed's knowledge to do that.)
I think we had a pretty good list of rules at the beginning of our Season 2 Discussion thread, didn't we? I wonder if we can locate that again.