Originally Posted by
PeteHski
Why would someone who doesn't race or compete want a tri-bike with dubious handling and uncomfortable aero position?
As I see it, someone asking to compare gravel, road and tri bikes directly doesn't really know what they want. The middle ground here would be a road bike of course, but probably not the one he listed.
I've never ridden one but the reviews of the Felt B12 indicate that the handling is great (not "dubious") and that it's very comfortable. I agree that there may be better choices, but we were asked to pick from those three specific bikes. I'm saying the Felt is the best among those three and would be a good choice for his particular use case. The Diverge is more versatile, but it's just a generic mid-level bike with an aluminum frame, and according to reviews the quality of the Tommasso is somewhat sketchy. Even if the OP buys other bikes in the future for other types of riding, at least the Felt would be a keeper and he'd pull that one out for the smooth, paved roads and trails.
Edit: Plus, he's going to get a lot more "Cool bike, bro!" comments riding the Felt. Nobody's going to notice the Diverge.