EpiMark™ Hot Start Taq DNA Polymerase is a very good choice (NEB #M0490), because no initial activation time is required and the buffer composition is optimized for AT-rich PCR. Hot start DNA polymerases requiring > 2 minutes for activation are not recommended; because the DNA after bisulfite reaction is degraded, heating for > 2 extra minutes at 95°C will cause severe degradation.