The real question should be
Leather straps or steel??
I own both , but personally i think the Leather strap feels and looks much classier.
I prefer leather, but then again I have fairly hairy arms.
I've gone through quite a few watches (everything from Citizen, Seiko, Panerai, Tag, Omega, Lum-Tec, to Sinn) over the past ~10 years trying to find something I liked. Ended up selling everything off but my 2 Omegas:
1961 Omega Seamaster
and a Speedmaster Pro
The only other watch I'd be interested in picking up would be a vintage Rolex Explorer (something similar to Edmund Hillary's watch/es).
Other than that, I'm extremely pleased with my Omegas, not only in their quality, but also due to personal reasons:
-the 61 was given to me by my father. He purchased it after landing a big promotion @ Lockheed, and subsequently gave it to me after I graduated from grad school
-the SpeedyPro...because it was worn in space/on the moon, and I have a deep nostalgia for all "mechanical" things from that era.