Quoted from MikeS:
I agree that EBD was the more successful pin back in its day and is the better player of the two, but Fathom would be a much better choice for a reproduction based on how much more collectible it is today. I think the art package is far superior on Fathom which makes it a more desirable title in restored condition. If given the choice I think more people would rather have a restored/collector's quality Fathom paired with a player condition EBD vs. a restored EBD and a player condition Fathom. If you're reproing early Bally SS games I think Fathom is easily the top choice followed by Centaur. After that I could see games like Medusa, EBD and Xenon later down the line. With that being said, I doubt any of this would ever happen as there are about 10 DMD titles that it would make way more sense to repro first.
Fathom would probably make the top five on my list of early SS to be reproduced but definitely not the "top choice". There is only one machine from the era that is the hands-down obvious candidate for that.
I would rather have an EBD any day over a Fathom in similar condition unless of course, I already had one or two EBD and wanted to add a Fathom to the collection. I have both and even today after 35 years the EBD still gets a lot more plays than Fathom does.
When you decide to undertake a project of this magnitude, you want to select the best title to make it a success. If you manage to pull the first one off, then you can follow-up with the lesser and niche' titles that target a more narrow audience.
If you recall, back in the 1990s Amtex selected what I consider to be the absolute best SS pin (Bally Eight Ball Deluxe) and the best EM pin (Gottlieb Royal Flush) to be their first two PC simulations. The company is long gone bankrupt now but at least they picked the two best machines. If they couldn't make it with those two, they weren't going to make it.
I don't know the entire story behind Amtex but the simulations were excellent and still are even by today's standards.