SUNDOWN ZV4 15 VS MTX 9500 15 MAX SPL MASSIVE FLEX

I have been waiting along time to do this comparison and now it's show time ! Who wants to see these 2 power houses square off ? I DO !!!
Sundown ZV4 15 dual 2 Ohm wired in parallel 1 ohm.
Mtx 9500 15 dual 2 ohm wired in parallel 1 ohm.
Hifonics ZUES elite zex 2550.1D
2500 watts rms @ 1 ohm
Stock electrical system.
4 gauge power wire
12 gauge speaker wire