Don't worry yourself with what's the "coolest thing on the road or at the car shows"
Instead pick an engine that you like for what it is and that you're familiar with and comfortable working on, or willing to learn about.
When picking engines for my trucks never once did I consider what other people might think is "cool" I picked what I thought would be useful, fun, and enjoyable for me, as I'll be the one working on and driving the things.
It's your decision that's for sure.
Grigg
