Thanks.So, there's this book for DMC1 called Devil May Cry: Graphic Edition. In that book Shinji Mikami has an interview where he talks about the influences for the character. Well, either there on on the first DVD Book they released. In the GE Mikami talks about how demons are highly intelligent and super strong, far more than any human, and that's why Dante, who is part demon, has superhuman strength and intelligence. I posted the translation for that here ages ago but the original source, from projectumbrella, who translated it out its connection to RE, is now dead.
The Original Scenario of Bio Hazard 4 (Devil May Cry)
By Welsh, member of Project Umbrella forums http://projectumbrella.net/forum/Original-Scenario-Bio-Hazard-4 This topic offers some thoughts on the first scenario of Biohazard 4, rewritten under the title of Devil May Cry. I will be damned if I ever finish an editorial… Nevertheless, my duties...devilmaycry.org
If you want to gander through that you might find the passage. It's a bit of a read.
I'll check the other source in case it's that other book.
Something I find ironic about Dante's intelligence is that the last time he shows any real cunning is in DMC 2 where he swaps out the medallia for his own to disrupt the ritual. I call it ironic because this is one of two games fans want to ignore.