The breakdown:
TRUTH would've had the upper hand with his aggressive opening lines (up through "castle"), except that "sheep cattle" broke the flow and came off kinda corny sounding. The middle four lines (up through "kicked off") were pretty weak; the "bad trail", "water" and "football" comparisons made sense at least but lacked impact or any interesting spin on the concepts. The last couple of lines were the strongest part, but still didn't really rise to the next level of battle skills.

G-Deuce had a strong opening four lines, taking control of the battle right away. Then three so-so lines followed by a decent punch ("left him out da mix"). A couple more punches that weren't original but got the job done (I figure "corn rolls" was supposed to be "corn rows"). And finally a somewhat flimsy final jab, even if it contained good imagery.

I'm thinking on the whole G-Deuce was more consistently solid with his punches in spite of fizzling out at the end, so he gets the vote.