I've had both the original EBMM with the logo on non-SUBs and the SUB ones as well, and I gotta say that there isn't much difference. The thickness of the plates, the barrels, the body interface, all top notch. I won't say it's the be-all, end-all design of bridges, there's WAY better technology these days.
But I'll say this: you're not gonna find huge difference between the US SUB and regular bridges.
As for replacements, GOOD LUCK! There's really no "drop-in" made. The only replacements that I've seen drop in-ish are absolute turds. Cheap, thin bent plate and/or low quality knock-off stuff. I have one sitting next to me as we speak and it's about half as thick as the genuine, with barrels that are wimpy and cheap.
If only Hipshot would make one, I'd be on that like ugly on ape.
If you didn't care about a drop-in mount and were willing to drill new holes, I'd say any high-quality bridge would do the trick.
What is it about the original that rubs you the wrong way?