Why do a simple question of whats better between two engines does the mention of snails get thrown in the equation ???

My GQ is the TB42 EFI Auto
100% stock nissan and it has enuf power to do everything i need
Heaps power , pulls large loads up hills
Only donwside is the economy (or lack off)
But its 3 tonne ,aerodynamics of a brick coupled with an auto
Wasnt certainly bought cause it economic thats for sure

Diesel Vs Petrol
Personal choice