I mean thats nothing new. People have been comparing the two for decades now. Its fun as a thought experiment, but it never really goes that far because the two are from completely different schools of thought in the mecha genera.
The true answer is if you wanna play mecha, which one allows background dudes a chance more. Say what you want about this old clunker BT, but you just might crit that Axman, and boy has he deserved it.
They also run on and emit particles that make normal methods of radar and detection useless, which is why most fights in the Universal Century are at visual distance.
Average weight size for Mobile suits is about 60 tons with the RX-78 being focused on. With later technologies the amount of weight becomes less with the Unicorn weighing at 40 tons. By the time around UC 0145 the Victory 2 Gundam weights at 15 Tons.
The average height for a gundam is also pretty easy to check since the IRL models are supposed to be representative of how they'd look if they were real.
