I would look into each organization(websites) and if possible go to some contests to get a feel for what each org. offers. They are all so unique with their events. Some transfer over - others don't.
If attending contests isn't possible I would come on here and ask questions...lol.
Im not in Ohio but I can answer questions you might have about NBTA events. I know ther are a ton of people on here that are from other organizations and they could help you sort thru those.
First I'd start checking out all the sites.
Here's a list just incase you don't have them yet.
NBTA
http://www.batontwirling.com/
click on NBTA
USTA
http://www.ustwirling.com/
TU
http://www.twirlingunlimited.com/
DMA
http://www.dmatwirl.org/
WTA
http://www.worldtwirling.cc/
Hope that helps some