Hi Cristina,
It is hard for me to comment specifically about any of these, as I do not have experience with these specific systems. While I’ve done some taiji in the past, I’ve not trained wudang taiji. The Coliseum looks like mostly an MMA gym, which is likely to have a heavy focus on sparring. Their method of Kung fu that they claim is unfamiliar to me, and they describe it as a mix of Kung fu and karate and other things. I am always cautious with such mixed systems, as it seems to me they are often not mixed in a way that makes sense and I wonder if the method was created as an attempt to make up for a lack in depth of understanding. Simply mixing different things together does not automatically make a better result. But as I said, I have no specific experience with the system and it is possible that you could receive quality instruction and training from them.
The third place you mentioned also looks like an MMA type gym which is likely to have a heavy focus in sparring.
For myself, I am more interested in the traditional Chinese martial arts and it looks to me like the taiji school is most likely of those three to offer that kind of training. So if I was to choose for myself between the three, I would go to the taiji school.
However, I would say all three schools are worth your time to explore. Go and see if you can watch a couple classes, maybe they would let you try a class or two for free so you can try it out. Then whichever school seems like the most interesting to you, where you feel the most comfortable with the training methods and the people and the instructor, go with that one. Do not get too attached to the idea of a particular system, as a good instructor is what is more important than the particular system.
Good luck and let us know how it turns out.