I love my truck. I only had v8's and turbo's in my stable and this is the the second vehicle i purchased that is not a v8 motor. I currently have a VW GTI 4 cylinder turbo. I don't haul anything and never will. The v6 has 305 hp and enough torque to satisfy my functional requirement for the truck. I would definitely have been happier with a v8 ONLY because it is what i am used to when I am behind the wheel (A want). However, with three kids I am looking at functionality (the NEED) and if i need a thrill ride on the track, i have my other toys for it. Gas mileage states 19 to 20 mpg on average for the v6 but I am doing 14 mpg driving in and around town. I hardly do any highway driving in SoCal. So a bit bummed about that. However, it takes 85 and 87 octane so it does not hit my wallet that hard at the gas pump. Gas prices here in SoCal are still high. $2.89 and higher.
What really drove me to the v6 was the obviously the price because I was focused on the need. I got a 2015 left over in March 2016. This is what i would recommend for you to do or start shopping in November from Thanksgiving and on. You will see far more v8's vs v6's on the road but it comes down to what you want or need. If you want the power then v8 is the way to go. In the v6 you will feel a slight drag, however, this depends on how picky you are.
So all in all it will come down to need vs want and what you are willing to pay for either. V8's will always have better resale. I am not discouraging you from the v6 at all. I love my truck and b/c people want or need the v8 more, you are going to find great deals on the v6 motor.