Banbury Cross has recendly relocated to a top notch facility around the corner at the Lubrano’s- Horizon Hill Farm. Denise has limited school horses but should have something nice that you could jump around on. She is more of an eq rider focus, if that is what you are looking for.
Ditto the recommendation for John Muldoon and Dawn Taylor Bell. John can be a little bit of a tough cookie but knows his stuff and turns out winning riders. Not sure of the extent of his advanced level school horses. Can’t say anything bad about Dawn but likely a lot of lessoners.
If you are looking for more of an A level trainer out of the 3, I would go with John. If you want to focus more on your eq or get more focused individual instruction, I would look into Denise or Dawn.