HELP: Between these two trucks

Hello I am looking at buying 2012 CASCADIA.
Should I go with dd15 OR cummins.
What are the Pros and cons of both?
How are these new Cummins engine?

THANKS

 

Cummins

 

Which gearbox do you want to use?

 

agreed on cummins, driven the dd15 prefer the ISX

 

Im looking to buy a truck but it only has 425hp and it's a cummins 2012 CASCADIA. I do flatbed freight of all kinds and go all 48 states. Will I have an issue with a 425hp cummins?

 

We have a guy that hauls with us using a 425 CAT and the only issue he has is keeping up in the hills. Other than that he gets in the mid to upper 6 mpg range running at 90k plus

 

I'd pick the Detroit, from my research they are the least problematic.