Regulatory risk is high today at TD Bank. Scotiabank's turnaround plan and its notably higher yield might be more attractive to investors.I own shares of Toronto-Dominion Bank (TD -0.75%) and Bank of Nova Scotia (BNS -0.70%), so I'm fond of both companies. However, TD Bank is facing a unique regulatory headwind that might bother more conservative investors. Although Scotiabank has its own problems, it isn't facing the same regulatory issues and has a higher yield. If you are considering investing in TD Bank ...