Which title is more prestigious and has a greater opportunity for growth?

I have found in my career that small distinctions in titles mean very little. Scope of responsibility and work product / results lead to more opportunities for growth. You want your title to reflect your responsibilities obviously but not overstating it. You also want to be compensated for your responsibilities.

I guess if you are creating titles, why not Senior Treasury Accounting Manager and Controller?

If you want more opportunities for growth - have a solid work ethic, show enthusiasm for what you do and what your company does, ask for more responsibility when the timing is proper and never stop learning.

Good luck.