I suggest going to both. I am a Crossmen alum, so obviously I'm biased, but I also believe that some corps just "fit" people better. I was lucky that in my one and only year that I could march, I found the corps that was perfect for me. You need to get a feel for the organizations first hand, not just based on what other people say. One might just "feel" right making your decision much easier.
Allison