This was actually close as hell, and dope as fuck, listened to it so many times. War spawn had some bars which had me thinking 'oh shit' like, the reference/comparison to SJD with mixing genres was great, and even though it was simple, the delivery on 'you fat faggot' made it pretty brutal. Second verse, with the 'say the same thing about losing weight too' and then the Wu-Tang flip was awesome as fuck. There was some filler as well and sometimes the flow sounded a bit crammed but not really often. RJA had a nicer flow with this and changed it up more often as well which was pretty cool, the flip with the leather jacket talking about traffic was funny and was delivered well, and also ended the verse with the great delivery on 'that FUCKIN impressive'. Second verse, flipping spawns last line was funny, he dwelled on it quite a bit though so it lost a bit of the punch, but the last bar was quite a stand out one as well. But the line about spawns lack of rhyming seemed kinda hypocritical, when in his first verse he opened with lines that didn't rhyme. And also, (and this sorta applies to the battles that happen with TK), comparing your opponent to rap legends wont really do you any favours.
I think in the end it was pretty evenly matched, but I'd probably juuuuuust give it to War Spawn, for both, taking into account what I said (hypocritical bar and rap legends shit), and having a more consistent delivery, whereas RJA would seem to only go in hard at times for certain punches and give less into the rest, which definitely works to give added emphasis, but it gets quite noticeable for how contrasting it is with the bars that seem delivered with less emotion.