Now that I've had a chance to review the survey...
Bavarian Adventure: This looks very reminiscent of Disneyland's classic Fantasyland rides, and I'm here for it. As a year round park in an area that does get colder weather, more indoor attractions are always a good thing, and this would provide the park with an all-audiences indoor attraction.
Tallest Coaster in Mid-Atlantic: Could BGW benefit from a giga? Absolutely. Is a giga really the coaster type the park needs most right now? I'd probably say no. To me, this seems more like a good concept that would be a better fit at pretty much any other park in the chain.
Herr Ticktock's Workshop: I loved the first dark ride concept, and I think I love this one even more. While I find screen based shooters to be a bit meh, this looks like it's mostly practical sets, and interactive attractions of that nature are something I seek out at parks even if the quality isn't the best. This also feels the most developed of the survey's concepts.
World's Tallest Hybrid: This is by no means a knock on RMC, but one of their rides at BGW just feels a bit pedestrian for the park. With the exception of Tempesto, every other coaster at the park provides a fairly unique experience even amongst others of its type, and I'm just not sure a massive RMC would be able to do that. Would it become the best coaster in the park? Probably, but I don't know that a massive new coaster is really needed at the park right now.
Italian Boat Adventure: I consider Pompeii one of the better water rides among regional parks, so redoing it as what appears to be a water coaster would only make it better. The concept art for this one is a bit funky, though, so it's hard to get a read on exactly what it might be.
Italy Gardens Area: If BGW is picking only one concept from this survey, I'd be a bit disappointed if this was the one they went with. If they're picking multiple concepts, I'd be extremely disappointed if this wasn't chosen. Many parks have a shortage of flat rides (especially modern flats), and this looks like a pretty nice combination of offerings.
Steel-Water Hybrid: Honestly probably a better coaster addition for the park than the giga or RMC, but unless the cost savings are significant I think redoing Pompeii as a water coaster would be much better than simply adding a more basic one elsewhere. BGW really doesn't need a fourth water ride.
TLDR, my overall thought is...
-If they're picking only one thing from this list, I'd hope for one of the dark ride concepts and slightly prefer the interactive one.
-If they're picking two or three things, I'd have the flat package as second choice and the Pompeii makeover as third choice.
-I'm not really feeling any of the coaster choices here for the park. In my mind, among the common models the best choices for the park's next coaster would be either a full size wooden coaster or a spinning coaster (either extreme or family-friendly).