The Suzi, will be quieter, possibly slightly better on fuel, depending on what it's pushing & cost more to service. The Etec will put a big sh1t eating grin on you face every time you hit the throttle & be cheaper to keep. This could very easily go into 2v4 stroke territory which has been covered umpteen times, hence the lighthearted but well meaning initial reply.
Rule#2: Never argue with an idiot. He'll drag you down to his level & then beat you with experience.
Rule#3: Tha' can't educate pork.
Rule#4: See rule#5