Seems like a bit of a downgrade
On a related note, I have successfully gotten my nephew into Gundam... but his 14 year old Transformers-obsessed brain simply refuses to accept that Optimus would get urfed by even a GM beam spray pistol, let alone a newtype snipe.
Look what killed Prime in the animated movie. I count six hits in the 'liver', starting with a spike, including a beam saber and pistol shots. And he didn't immediately die, he 'bled out'.
Against a RX-78? IMO he wins. Prob even with a newtype pilot since he has instant response time.
Versus something equipped with a Trans Am, Psycoframe, fin funnels/bits or "we spending our animation budget on dis shit" beam cannons? Sorry my dude, you ain't it.
Yeah, it's the little purple gun:
It's always imprecise at best when doing cross-universe comparisons, but there's just a massive amount of difference in firepower, armor, and scale. There's no contest IMO.