I’ve got the Sterratos, Digests and Cowbells.
The Digests are a different kettle of fish to most drop bars. For me there’s only one usable hand position (others will disagree) and while it’s a very good one for off-road, the Digests wouldn’t be my choice for a mixed-use bike. Also the central 31.8mm section is extremely narrow so mounting stuff is pretty much a no-go.
The Sterratos and Cowbells are much more similar. I’ve only just fitted the Sterratos and haven’t used them in anger yet but from a quick sit on the bike in the garage my impression was that the Cowbells are a bit more ergo-shaped and a bit more “open” in the drops, while the Sterratos feel like they have a tiny bit more flare. Not a huge amount to choose between them; I’ve been happy with the Cowbells for mixed use but they’re not that far removed from a conventional drop bar. But like I say, I’ve not actually ridden the Sterratos yet…
Used to have Bell Laps which I found far too manipulated in the drops, they put too much pressure on my palms. Venture Maxes look like they’d do much the same.