While a fellowship in either of these would be solid, I would reccomend to just start working in clinical research after you graduate. Move to NJ or Cali and just go on as many inteviews as you can or get a job at a CRA. I ended up not doing a clinical research fellowship because I was hired by Novartis Oncology straight out of school to do the job I would've gotten post-fellowship (Senior Clinical Manager) and had a ton of friends who went the fellowship route. I can genuinely say, while it's a solid program, I'd avoid it if possible.