Great vets can come out of any school, and doing an internship at a school or pvt practice with a large caseload matters a whole lot more than where you do what will honestly be on the order of weeks, at best, of sports medicine/lameness related stuff. You will also get the opportunity to do externships at other schools, or at private practices that will have a much greater proportion of lamenesses in their caseload than most vet schools. IME, in areas with good private practice vets, clients are more likely to do most of the workup, including digital radiographs and ultrasound, on the farm or at their own vet's clinic. They are more likely to be referred to either the vet school or a specialty lameness practice (if available) if the horse needs high-end diagnostics such as MRI and nuke scans or surgery.
There are some great lameness vets at the MDS Equine Medical Center in Leesburg, VA, which is part of VMRCVM, but their caseload has been declining (both inpatient and outpatient), probably due to (IMO) a combination of the economy and competition from a number of private practices who are now able to offer surgery, nuke scans, etc.