2 Stroke Mercury 125 Opti-Max VS 4 Stroke Mercury 115

[sapper3]

Looking for advise on 2 Stroke 125 Opti- Max VS 4 Stroke 115 Mercury. I am in the market to purchase a 1700 Crestliner Super Fish Hawk. It comes with a 125 Mercury Opti-Max DFI. I have 3 Teens that will like to go tubing. But I will be mainly trolling and fishing. I have never seen 2 strokes works only 4 strokes Mercury. I have heard that they are noisy and use more oil and harder to troll with. Are they noisier than a 4 stroke? So you can’t talk over them. My question is what motor is best suited for my use and is there much of a difference in speed and HP between the two. Thanks